A castellated nut, also referred to as a castle nut or slotted nut, is a nut with slots (notches) cut into one end. Although castellated nuts are frequently referred to as slotted nuts, there are slight differences. Castellated nuts are formed with a round section at the top where the slots are located. Slotted nuts do not have this rounded modification. The flat sides of slotted nuts extend fully from the top to the bottom of the nut. Both castellated and slotted nuts are designed to use a pin (usually a split pin) that fits through the slots and through a hole in the screw to which the nut is attached. This pin prevents the nut from turning and loosening. Compared with slotted nuts, castellated nuts allow the cotter pin to be confined closer to the margins of the nut itself, providing added secureness.

MS17825 Series nuts are slotted hexagon style lightweight castellated self locking nuts manufactured  from cadmium plated steel to standard castle or shear nut specifications with a nylon insert added for positive safety. They are offered as part of our own labelled (AVIATIONEU NEW ERA) product lines and can be used throughout the control system. In case the cotter pin used with castle nuts is overlooked, the nut cannot work loose. The nylon insert will act as a stop nut.

A. RAYMOND TINNERMAN® & PALNUT® (aka PAL) of TINNERMAN PALNUT ENGINEERED PRODUCTS, INC. are leading brands in specialty clip-type fasteners including the world's largest selection of spring steel, stainless steel, and plastic engineered fasteners.Their fasteners replace traditional fastening methods with innovative solutions combining aesthetics and functionality. They are quick and easy to install, and do not require mounting tools. 

TINNERMAN®  & PALNUT® equivalent (style) fasteners, corresponding to respective OEM popular part numbers, and other specialty fastening products are sourced from different quality manufacturers and offered as part of our own labelled (AVIATIONEU NEW ERA) product lines (*). Depending on the selected products, they can be supplied in inch or metric systems in different design variations (impression types), materials, finishes and screw sizes to comply with panel thicknesses. Sold in pieces mostly in packs of specified number of fasteners according to the selected part number. The number of pieces per pack is indicated after the letters "PK" in the product SKU. Parts are all in NEW Condition unless otherwise specified and are accompanied by our own and Manufacturer's Certificate of Conformance.

For additional information please refer to the supplied documentation or contact us.

(*) TINNERMAN® & & PALNUT® are registered trademarks of A. RAYMOND & CIE and TINNERMAN PALNUT ENGINEERED PRODUCTS, INC. respectively. AVIATIONEU GROUP companies DO NOT manufacture these fasteners. They are sourced from their respective manufacturers and/or authorized distributors.

DIN LN 9338 / LN 9161 Standard nuts are hexagon flanged self Locking  nuts offered in Metric thread sizes. Also known as K-Nuts, these 6 point self locking nuts with integral washer are commonly used in aerospace and motorsport applications. Both are lightweight, with a reduced height for use in confined areas, a high mechanical resistance, corrosion resistance and a wide operating temperature range. DIN LN 9338 nuts are made of alloy steel (typically  35CrMo4 steel) and cadmium plated.  They can be used for temperatures up to 235 °C. Their counterparts of the LN 9161 Standard are offered in Regular and High Temperature versions. The high temperature LN 9161 nuts differ from regular ones in terms of material, finish and temperature class. Regular LN 9161 nuts typically made of 35CrMo4 aerospace steel with cadmium plating are intended for use for temperatures up to 315 °C while high temperature LN 9161 nuts from Stainless A286 CRES with silver plating can cover temperature requirements of up to 425 °C.

Depending on the Standard, DIN LN 9338 / LN 9161 nuts are offered in different thread sizes from various manufacturers including HOWMET AEROSPACE (separately listed), PAOLO ASTORI, ECROU AVIATION and others. 

For additional information please refer to the supplied documentation or contact us. 

National Aerospace Standards (NAS) are voluntary standards developed and maintained by committees and working groups of subject matter experts from member companies of the U.S. Aerospace Industries Association (AIA).

These standards have served as the foundation for the development of aircraft, spacecraft, watercraft, ground vehicles, machinery, and electronics.

NAS parts are most well-known for state-of-the-art, high-strength, precision fasteners, electrical connectors, splices and terminations, rod end bearings, and many other types of hardware and components. The NA prefix relates to metric standards. 

NAS 1022 Series Hex Self-Locking Machine Nuts form part of NAS high-strength, precision fasteners. These low height and strength hexagon machine nuts are sourced from quality manufacturers and offered in different materials and finishes as part of our own labelled (AVIATIONEU NEW ERA) product lines in different thread sizes and dimensions in inches. Those from 450 deg. low strength steel are designated by the letter "A" after NAS1022. Similarly, the letter "C" designates nuts from corrosion resisting steel passivated while the letter "N" refers to steel cad plated nuts.

The AN363 series regular height all-metal stop nuts are similar to those of MS21042 series except that MS21042 nuts are shorter than the AN363 but develop the same tensile strength. The AN363 series nuts are fabricated from carbon steel & cadmium plated as per specification QQ-P-416C or stainless steel, in which case the letter "C" is included after the series number (e.g. AN363 cadmium plated steel, AN363C stainless steel). Both are designed for use in high temp installations (AN363 up to 450°F, AN363C up to 800°F).  The AN363/ AN363C series nuts have been replaced by those of MS21045/MS21046C respectively which in turn are superseded by NASM21045/NASM21046C.  The Part Identification Number (PIN) for MS21045/MS21046C  and the part number for NASM21045/NASM21046C nuts are identical. The part numbers have not been changed (eg. AN363-1032 to MS21045-3 to NASM21045-3).

Sourced from quality producers, MS21045/MS21046C all-metal stop nuts are offered as part of AVIATIONEU NEW ERA product lines which also include nuts from other AN, MS/NASM series (please refer to the individual product presentations). Sold in pieces. Please refer to product specifications or contact us.

Note: Depending on availability,these parts part may be supplied without or with Dry-Film Lubricant indicated by letter "L" in the SKU.

Titanium fasteners are best known for their strength,  lightweight, and corrosion resistance. They feature an excellent strength to weight ratio and significant mechanical properties but perhaps their most notable attribute is their superior corrosion resistance to salt water / seawater operating conditions. Titanium fasteners are used in aerospace, automotive and motorsports but also in many other industries including chlor alkali, marine, off-shore oil & gas, desalination, medical, and pulp and paper. They come in different types (like bolts, screws and nuts), sizes, titanium grades and standards/specifications (e.g. ANSI/ASME, DIN/ISO, ASTM, ASME, MIL specifications etc.) to meet application requirements. Compared to respective fasteners made of steel and aluminum, as a rule of thumb, titanium fasteners are about half the weight of their steel counterparts while aluminum fasteners are about half the weight of titanium ones.

Sourced from quality producers, a wide range of titanium fasteners are offered as part of AVIATIONEU NEW ERA product lines (please refer to the individual product presentations). 

AVIATIONEU NEW ERA Titanium nuts are available in both inch and metric systems. Their typicals uses include aerospace, marine, motorsports and many other applications. Manufactured from 6AL-4V grade titanium, CNC machined, heat treated with hexagonal heads and rolled threads these nuts come in diffrent types including locking and flange nuts(*), sizes, thread pitches, flange diameters and lengths. They are sold in pieces. For more information or unlisted fasteners please contact us.

(*) Appearing dimensions for Flange Nuts: Hex Size, Flange Diameter, Height (Hex or Total).

The NAS1423/NAS509 series hexagon nuts fall into the jam (aka check or thin) nut category. Jam nuts are a style of nut that features a low profile, typically half the height of standard nuts and diagonal drilled holes. Their minimal thickness allows them to fit in tight spaces where ordinary nuts might not fit. NAS1423 series jam nuts are manufactured from 4130/4340 cadmium plated steel alloy or unplated A 286 stainless steel (designated by the letter "C" in the part number). NAS509 series jam nuts NAS1423 series jam nuts are manufactured from 4130/4340 cadmium plated steel alloy or corrosion resistant steel passivated (designated by the letter "C" in the part number).

Sourced from quality producers, the NAS1423/NAS509 Series check nuts are offered as part of our own label (AVIATIONEU NEW ERA) product lines with Right or Left  Hand threads in different sizes in inches. Letters "R" and "L" in the end of the product reference number (SKU) indicate a Right or Left Hand thread respectively. Sold in pieces or packs of specified nuts per pack indicated after the letters "PK" in the product reference number (SKU).

For additional information please consult the supplied documentation or contact us.

Steel Nut Specifications:

Material - 4130 Alloy Steel Per AMS-S-6758

Finish - Cad Type II, Class 2 Per AMS-QQ-P-416

Heat Treat- 150 KSI Min Per AMS2759

Hardness - 34-38 HRC

Thread Series & Class: UNJF 3B (Unified National Fine thread series with external thread controlled root radius)

Note: UNJ, UNJC, UNJF and UNJEF thread series are almost identical to the respective UN, UNC, UNF, and UNEF threads except that the external J thread has a much larger root radius than the standard UN threads and inspection must be performed on this element. The Special UNJ threads are designated by the nomenclature UNJS. J screw threads feature a root radius which improves the tensile stress area of the fastener and helps to reduce the stress concentration factor in the thread thus making the thread stronger. Additionally, the requirement for high strength is achieved with 3A and 3B classes of fit. All pitch diameters and tolerances are based on the Unified Inch Standard.

Anchor nuts (aka nutplates or anchor plates) are terms used interchangeably and relate to stamped sheet metal fasteners with an internally threaded tube and a plate with two clearance holes for rivets. Initially designed and still extensively used in aerospace applications, they are today also used in automotive, motorsports, and other industries in blind mounted panel applications where hex nuts cannot be used or an attached nut is required for ease of maintenance. They can be Fixed or Floating, the latter being easier to install due to their built-in nut (threaded hole) able to "float" slightly thus providing a convenient connection point for threaded rods, such as bolts, from the backside. In the case of Fixed anchor nuts, the built-in nut is static (i.e. without the capability to “float”) and the threaded bolt must be positioned perfectly over the hole. Self-locking anchor nuts are those with a built-in locking mechanism preventing them from loosening over time from vibrations.

Anchor nuts are offered in Imperial (in.) and Metric thread sizes, in different materials (e.g. Carbon Steel, Steel alloys, CRES), finishes such as Cadmium or Cadmium Free Zinc Nickel platings (compliant to EU Regulations) with or without dry film lubrication. They come in various styles/configurations (e.g. with one or two lugs, full size or miniatures, countersunk, corner, right-angled bodies, etc.). They conform to different U.S., European and international standards such as the US Military MS and NASM, German DIN LN, French AFNOR NF, British BS, ISO and others.

Depending on the selected nutplate, aerospace anchor nuts are produced by different manufacurers, such as HOWMET AEROSPACE (formerly ARCONIC) or PAOLO ASTORI, and others, and offered as respective OEM parts or as parts of our own labelled (AVIATIONEU NEW ERA) product lines in the case of those used in industrial applications. Sold in pieces or packs of specified number of anchor nuts per pack indicated after the letters "PK" in the product SKU. 

Anchor nuts manufactured i.a.w DIN LN 29681 standard are Metric self-locking floating one-lug anchor nuts. Depending on the manufactuer, they are made from Steel Alloys (25CrMo4,DIN 1.7214.4/1.7220.3, 25CD4, SAE 4135/ 4140, AISI 4135/4137) with Cadmium plating & MoS2 low friction coating. Suitable for use in temperatures up to 235°C. Their counterparts of DIN LN29668 Standard are made from Incoloy Alloy® A-286 (aka A286 Alloy Stainless Steel, an austenitic superalloy) and can be used for temperatures  up to 425 °C. Both feature a tensile strength of 900 MPa. Offered in different Metric thread sizes from HOWMET AEROSPACE (separately listed), PAOLO ASTORI and others as OEM parts. Depending on the part number they are sold mostly in pieces but also in packs where the number of anchor nuts per pack is indicated after the letters "PK" in the product SKU.

For additional information please refer to the supplied documentation or contact us.

Anchor nuts can be Fixed or Floating, the latter being easier to use due to their built-in nut (threaded hole) able to "float" slightly thus providing a convenient connection point for threaded rods, such as bolts, from the backside. In the case of Fixed anchor nuts, the built-in nut is static (i.e. without the capability to “float”) and the threaded rod must be positioned perfectly over the hole. Self-locking anchor nuts are those with a built-in locking mechanism preventing them from loosening over time from vibrations. They are extensively used in aerospace, automotive, and construction industries.

Depending on their intended application, nutplates conform to different military, aerospace, ISO or other industrial standards such as the German DIN, U.S. (ASME & ASTM, IFI, ANSI), British BS, Japanese JIS and others. They are offered as OEM parts under their respective brands or under our own labelled (AVIATIONEU NEW ERA) product lines intended as cost-effective alternatives to the respective OEM products. Listed in accordance with their standard of compliance, Fixed and Floating nutplates come in different materials (such as steel or CRES & finishes),  in single/double lug configurations and Metric ISO οr Unified thread sizes. There is currently no U.S. Military Standard (MS) specification for Metric nutplates. Depending on the selected product and availability, nutplates can be supplied with a dry film lube specified by the letter "L" in the respective part number. Those with countersunk rivet holes are specified by the letter "K" at the end of the part number.

Sourced from quality manufacturers, AVIATIONEU NEW ERA MS21069/MS21070 series nutplates are fixed self-locking, two-lug, reduced rivet spacing low height miniature anchor nuts.  MS21069 series nutplates are made from cadmium plated steel while those of MS21070 series from corrosion resistant steel (CRES). They come in different Unified Thread sizes with plain or countersunk rivet holes on each side,  with or without a dry film lube. Sold in pieces but also in packs where the specified number of nuts per pack is indicated after the letters "PK" in the product reference number (SKU). Appearing prices are always for the units of measurement used each time. Matching rivets are sold separately.

For additional information please refer to the supplied documentation or contact us.

NASM21083/MS21083/AN364 series hexagonal low height self-locking  nuts with elastic insert are intended for use in structural applications. Sourced from quality producers and offered as part of our AVIATIONEU NEW ERA product lines, they are fabricated from different materials and finishes (cadmium plated steel, corrosion resistant steel passivated, aluminum alloy anodized) indicated by the following letters after their series number:

Letter “A” after dash number for nuts having non-metallic inserts

Letter "C" corrosion resistance (stainless) steel CRES passivated

Letter "B" brass

Letter "D" aluminum alloy anodized

Letter "N" cadmium plated steel

Cad plated nuts are furnished to military specifications while stainless steel nuts are furnished to military specification and commercial grade. AN364 nuts have been repaced by MS21083 which in turn are superseded by NASM21083. The Part Identification Number (PIN) for MS21083 and the part number for NASM21083 nuts are identical. The part numbers have not been changed.

Screws, bolts and nuts are standard fastening hardware widely used in a range of applications. 

Internal wrenching (also known as Allen) fasteners are threaded fasteners. Screws and bolts have a drive recess within the head allowing the insertion of an internal wrench for their installation or removal. Allen socket set screws are blind (headless) fasteners with an internal hex drive offered in different styles (regular cap screw and flat and button type) while Allen nuts are cylindrical nuts internally threaded on one side with an Allen socket on the other. These fasteners are produced by different manufacturers and come in different styles, inch or Metric sizes, materials, finishes,  and coarse or fine threadings. They are offered as OEM parts or parts of AVIATIONEU NEW ERA product lines. Sold in pieces or packs of specified number of pieces per pack as designated by the number after the letters "PK" in the product reference code (SKU). 

Internal wrenching fasteners for aerospace applications are designed and intended for use in aircraft construction and repair and conform to Military or Aerospace Standards. Aerospace Industries Association Standard NASM 20004 through 20024 internal wrenching bolts supersede respective part numbers of MS 20004 through 20024 which in turn have superseeded those of older National Aerospace Standard NAS NAS 144 to 158 series. Fabricated from 160-180 ksi high-strength steel they are intended for use in both tension and shear applications. 

Socket screws for aerospace and military uses come in different sizes and meet aerospace/military standards including AN565 (superseded by NASM565), NAS1081, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966. Those of AN565 (NASM565) standard are headless hex and fluted socket set screws while their MS51963 standard counterparts are cup point hex socket set screws.  Both are made of high-quality steel and they are designed to deliver maximum holding pressure Typically used to bind parts onto shafts. Available in cup or cone point styles, in different thread sizes and lengths in inches.

81791 internal wrenching  nuts are self-locking, high-strength, corrosion and oxidation resistant nuts made of nickel-chromium alloy with cadmium plating. These nuts are catalogued and supplied in different sizes as part numbers of TEXTRON AVIATION (separately listed).

For more information, please refer to the Product Description section, the supplied documentation or contact us.

A castellated nut, also referred to as a castle nut or slotted nut, is a nut with slots (notches) cut into one end. Although castellated nuts are frequently referred to as slotted nuts, there are slight differences. Castellated nuts are formed with a round section at the top where the slots are located. Slotted nuts do not have this rounded modification. The flat sides of slotted nuts extend fully from the top to the bottom of the nut. Both castellated and slotted nuts are designed to use a pin (usually a split pin) that fits through the slots and through a hole in the screw to which the nut is attached. This pin prevents the nut from turning and loosening. Compared with slotted nuts, castellated nuts allow the cotter pin to be confined closer to the margins of the nut itself, providing added secureness.

MS14144 Series nuts are slotted hexagon style lightweight castellated self locking nuts manufactured from steel and cadmium plated. They are offered as part of our own labelled (AVIATIONEU NEW ERA) product lines in different sizes with right-hand thread direction and a dry film lubricant as applicable, specified by the letter "L" in the part number.

Note: Depending on availability,these parts part may be supplied without or with Dry-Film Lubricant indicated by letter "L" in the SKU.

Anchor nuts (aka nut plates or anchor plates) are stamped sheet metal fasteners suitable for blind mounted panel applications, where it is impractical to use hex nuts or where it is desirable to have an attached nut for ease of maintenance. They are usually riveted to a workpiece and have an internally threaded tube and a plate with two clearance holes for rivets. These terms are used interchangeably to describe the respective fastener.

Sourced from quality manufacturers, a range of nut plates complying with different Military Specifications are offered as part of AVIATIONEU NEW ERA product lines. They come in Unified thread sizes (*), Standard and Miniature versions, different types (fixed or floating, one lug, two lugs, corner, etc.) and various materials & finishes to meet application requirements. Depending on availability, these parts part may be supplied without or with Dry-Film lubrication indicated by letter "L" in the product reference code (SKU).

For more information and specifications of different MS series nut plates please refer to ithe supplied documentation.

Respective Commercial (Non Military Standard ) anchor nuts, meeting DIN, ISO and other standards, both in Metric (M3 - M12 diameters) and Unified thread types are also available as part of AVIATIONEU NEW ERA product portfolio. 

All AVIATIONEU NEW ERA anchor nuts are competitively priced, cost effective alternatives to the respective OEM parts sold in pieces but mostly in packs with a specified number of anchor nuts per pack indicated after the letters "PK" in the product SKU. Appearing prices are always for the used units of measurement each time.

(*) There is currently no military specification for Metric nut plates.

A wide range of Stainless Steel Hexagonal Nuts are offered as part of our own label (AVIATIONEU NEW ERA) product lines to meet diverse applications in aerospace and other industrial sectors. An overview of this product family structured in series is included below wihile additional information are included in the Product Description section. Sourced from quality manufacturers these nuts are available in different stainless steel materials, Metric or inch sizes, threads types and classes and comply with different standards/specifications depending on the selected product. Depending on selected nut size they are sold in pieces or convenient pacls of specified number of nuts per pack indicated after the letters "PK" in the product reference number (SKU). For further information please consult the supplied documentation or contact us.

AVIATIONEU NEW ERA AISI 304 Stainless Steel Nylon Insert Hex Lock (Elastic Stop) Nuts - Inch System. Retain locking ability up to 250 °F (121 °C).

AVIATIONEU NEW ERA AISI 304/316/667 Stainless Steel Hexagonal Lock Nuts - Metric System

AISI 304, 316 or 667 Stainless Steel. Meet DIN 985 standard. They feature a coarse thread type, bright finish and a strength class of  A2-70.

AVIATIONEU NEW ERA AISI 304 Stainless Steel Hexagonal (Non Lock) Nuts - Metric System

AISI 304 Stainless Steel. Meet DIN 439 standard. They feature a coarse thread type, bright finish and a strength class of  A2-70.

AVIATIONEU NEW ERA  AISI 410 Stainless Steel Hexagonal (Non Lock) Nuts - Metric System

ASTM A193 Grade B6 Stainless Steel Hexagonal Nuts combining high tensile strength, excellent resistance to corrosion, durability and long service life. Used in different high tensile strength and corrosion resistance applications.

AVIATIONEU NEW ERA AISI 304 Stainless Steel Nylon Insert Hex Jam Lock Nuts - Inch System

 Low profile lock nuts fromAISI 304 Stainless Steel. Suitable for corrosion resistance in applications exposed to fresh water.

AVIATIONEU NEW ERA 18-8 Stainless Steel Hex Jam Nuts - Inch System, UNEF Thread Type

Exhibit good chemical resistance and may be mildly magnetic. Used in low-clearance applications. Offered as RH or LH Threaded (UNEF Thread Type).

AVIATIONEU NEW ERA 18-8 / AISI 316 Stainless Steel Hex Panel Nuts - Inch System, UNEF Thread Type

Extremely thin nuts for tight spaces such as electrical panels. Can be furnished in 18-8 or AISI 316 Stainless Steel in different finishes. Those with a black-oxide finish have a dark surface color.

National Aerospace Standards (NAS) are voluntary standards developed and maintained by committees and working groups of subject matter experts from member companies of the U.S. Aerospace Industries Association (AIA).

These standards have served as the foundation for the development of aircraft, spacecraft, watercraft, ground vehicles, machinery, and electronics.

NAS parts are most well-known for state-of-the-art, high-strength, precision fasteners, electrical connectors, splices and terminations, rod end bearings, and many other types of hardware and components. The NA prefix relates to metric standards. 

NAS 1791 Series Floating Self-Locking Two-Lug Nut Plates (*) with replaceable nut elements and their NAS 1792 Series One-Lug counterparts form part of NAS high-strength, precision fasteners.  Sourced from quality manufacturers they are offered as part of our own labelled (AVIATIONEU NEW ERA) product lines in different materials, finishes, thread sizes and dimensions in inches.

(*) also termed as plate nuts, anchor nuts or anchor plates.

Anchor nuts (aka nutplates or anchor plates) are terms used interchangeably and relate to stamped sheet metal fasteners with an internally threaded tube and a plate with two clearance holes for rivets. They are used in blind mounted panel applications in aerospace and other industrial sectors where hex nuts cannot be used or an attached nut is required for ease of maintenance. 

Anchor nuts can be Fixed or Floating, the latter being easier to use due to their built-in nut (threaded hole) able to "float" slightly thus providing a convenient connection point for threaded rods, such as bolts, from the backside. In the case of Fixed anchor nuts, the built-in nut is static (i.e. without the capability to “float”) and the threaded rod must be positioned perfectly over the hole. Self-locking anchor nuts are those with a built-in locking mechanism preventing them from loosening over time from vibrations. They are extensively used in aerospace, automotive, and construction industries.

Depending on their intended application, nutplates conform to different military, aerospace, ISO or other industrial standards such as the German DIN, U.S. (ASME & ASTM, IFI, ANSI), British BS, Japanese JIS and others. They are offered as OEM parts under their respective brands or under our own labelled (AVIATIONEU NEW ERA) product lines intended as cost-effective alternatives to the respective OEM products. Listed in accordance with their standard of compliance, Fixed and Floating nutplates come in different materials (such as steel or CRES & finishes),  in single/double lug configurations and Metric ISO οr Unified thread sizes. There is currently no U.S. Military Standard (MS) specification for Metric nutplates. Depending on the selected product and availability, nutplates can be supplied with a dry film lube specified by the letter "L" in the respective part number. Those with countersunk rivet holes are specified by the letter "K" at the end of the part number.

Sourced from quality manufacturers, AVIATIONEU NEW ERA MS21061/MS21062 series nutplates are floating self-locking, low height one-lug anchor nuts. Those included in MS21061 series are manufactured from cadmium plated carbon steel while the MS21062 nutplates are produced from corrosion resistant steel (CRES). They are available in different Unified thread sizes, with plain or countersunk rivet holes on each side and come with or without a dry film lube. Sold in pieces but also in packs where the specified number of nuts per pack is indicated after the letters "PK" in the product reference number (SKU). Appearing prices are always for the units of measurement used each time. Matching rivets are sold separately.

For additional information please refer to the supplied documentation or contact us.

Anchor nuts (aka nutplates or anchor plates) are terms used interchangeably and relate to stamped sheet metal fasteners with an internally threaded tube and a plate with two clearance holes for rivets. They are used in blind mounted panel applications in aerospace and other industrial sectors where hex nuts cannot be used or an attached nut is required for ease of maintenance. 

Anchor nuts can be Fixed or Floating, the latter being easier to use due to their built-in nut (threaded hole) able to "float" slightly thus providing a convenient connection point for threaded rods, such as bolts, from the backside. In the case of Fixed anchor nuts, the built-in nut is static (i.e. without the capability to “float”) and the threaded rod must be positioned perfectly over the hole. Self-locking anchor nuts are those with a built-in locking mechanism preventing them from loosening over time from vibrations. They are extensively used in aerospace, automotive, and construction industries.

Depending on their intended application, nutplates conform to different military, aerospace, ISO or other industrial standards such as the German DIN, U.S. (ASME & ASTM, IFI, ANSI), British BS, Japanese JIS and others. They are offered as OEM parts under their respective brands or under our own labelled (AVIATIONEU NEW ERA) product lines intended as cost-effective alternatives to the respective OEM products. Listed in accordance with their standard of compliance, Fixed and Floating nutplates come in different materials (such as steel or CRES & finishes),  in single/double lug configurations and Metric ISO οr Unified thread sizes. There is currently no U.S. Military Standard (MS) specification for Metric nutplates.Depending on the selected product and availability, nutplates can be supplied with a dry film lube specified by the letter "L" in the respective part number. Those with countersunk rivet holes are specified by the letter "K" at the end of the part number.

Sourced from quality manufacturers, AVIATIONEU NEW ERA MS21071/MS21072 series nutplates are fixed self-locking, low height one-lug, reduced rivet spacing miniature anchor nuts. Those included in MS21071 series are manufactured from cadmium plated carbon steel while the MS21072 nutplates are produced from corrosion resistant steel (CRES). They are available in different Unified thread sizes, with plain or countersunk rivet holes on each side and come with or without a dry film lube. Sold in pieces but also in packs where the specified number of nuts per pack is indicated after the letters "PK" in the product reference number (SKU). Appearing prices are always for the units of measurement used each time. Matching rivets are sold separately.

For additional information please refer to the supplied documentation or contact us.

Anchor nuts (aka nutplates or anchor plates) are terms used interchangeably and relate to stamped sheet metal fasteners with an internally threaded tube and a plate with two clearance holes for rivets. They are used in blind mounted panel applications in aerospace and other industrial sectors where hex nuts cannot be used or an attached nut is required for ease of maintenance. 

Anchor nuts can be Fixed or Floating, the latter being easier to use due to their built-in nut (threaded hole) able to "float" slightly thus providing a convenient connection point for threaded rods, such as bolts, from the backside. In the case of Fixed anchor nuts, the built-in nut is static (i.e. without the capability to “float”) and the threaded rod must be positioned perfectly over the hole. Self-locking anchor nuts are those with a built-in locking mechanism preventing them from loosening over time from vibrations. They are extensively used in aerospace, automotive, and construction industries.

Depending on their intended application, nutplates conform to different military, aerospace, ISO or other industrial standards such as the German DIN, U.S. (ASME & ASTM, IFI, ANSI), British BS, Japanese JIS and others. They are offered as OEM parts under their respective brands or under our own labelled (AVIATIONEU NEW ERA) product lines intended as cost-effective alternatives to the respective OEM products. Listed in accordance with their standard of compliance, Fixed and Floating nutplates come in different materials (such as steel or CRES & finishes),  in single/double lug configurations and Metric ISO οr Unified thread sizes. There is currently no U.S. Military Standard (MS) specification for Metric nutplates. Depending on the selected product and availability, nutplates can be supplied with a dry film lube specified by the letter "L" in the respective part number. Those with countersunk rivet holes are specified by the letter "K" at the end of the part number.

Sourced from quality manufacturers, AVIATIONEU NEW ERA MS21049/MS21050 series nutplates are fixed self-locking, two-lug low height reduced rivet spacing nutplates. MS21049 series nutplates are manufactured from cadmium plated steel while those in MS21050 series are produced from corrosion resistant steel and silver plated. They are available in different Unified thread sizes, with plain or countersunk rivet holes on each side and come with or without a dry film lube. Sold in pieces but also in packs where the specified number of nuts per pack is indicated after the letters "PK" in the product reference number (SKU). Appearing prices are always for the units of measurement used each time. Matching rivets are sold separately.

For additional information please refer to the supplied documentation or contact us.

HI-SHEAR Fasteners are patented fasteners of HI-SHEAR CORPORATION (Patent Holder), subsidiary of LISI AEROSPACE, a manufacturer of advanced aerospace fasteners and installation equipment used in space, military and commercial vehicles. Depending on the fastener, they are made by quality fastener manufacturers (licensees) in different  countries including but not limited to LISI AEROSPACE companies, HOWMET ALCOA / SIMMONDS / FAIRCHILD, PCC  SPS, and others. 

HI-SHEAR nuts and collars are designed to fit with their related HI-LOK™/HI-TIGUE™ and HI-LITE™ pins  (separately presented) forming the respective fastener system. HI-LOK™ nuts and collars are designed to fit HI-LOK™ & HI-TIGUE™ pins. HI-LITE™ nuts and collars are designed to fit HI-LITE™, PULL-IN™, PULL-STEM™ & TAPER HI-LITE™ pins.

With a wide range of shapes, materials and coatings, they are suited for most of structural assemblies and are commonly used in the aerospace industry in tension and shear applications. Collars’ wrenching element is designed to break-away at a controlled preload. It has been tested over time and has proven its reliability when installed with non-torque-controlled tools. Main features of nuts and collars include:

- controlled preload

- wide variety of materials and coatings for installation in all structures

- suitable for shear or tension applications, with captive washer, self-aligning or self-sealing options

- limited access installation, using conventional tooling

- designed with a counterbore to fit nominal and oversized pins

- nuts allow customized torque and preload & low height design for low access areas

Please refer to the supplied documentation for additional information.

AN315/NASM315 Series hex plain nuts are manufactured from steel and cadmium plated per QQ-P-416A, Type II, Class 3, corrosion resistance steel or aluminum alloys. The AN315 nuts have been superseded by NASM315 Series. Similar to common nuts  but with a rugged construction they are designed and built with aviation grade materials and to specific aviation design specifications. They can carry the same high tension load as the AN310 castle nuts and require an auxiliary locking device such as a check nut or lock washer. 

Sourced from quality producers, the AN315/NASM315 Series hex plain nuts are offered as part of AVIATIONEU NEW ERA product lines in different thicknesses and thread sizes in inches. The following letters are used to designate specific types of airframe nuts:

"C" before dash number for corrosion resistance steel nuts

"D" before dash number for aluminum-alloy nuts

"L" after dash number for left-hand thread

"R" after dash number for right-hand thread

For additional information please consult the supplied documentation or contact us.

Certification Details:

AN315 (REV. 10) (NOTICE 2)., AIR FORCE-NAVY AERONAUTICAL STANDARD: Nut, Plain, Castellated, Airframe (23 SEP 2002) [S/S BY NASM315]., AN315 REV. 10, dated 29 DECEMBER 1972, is hereby canceled and superseded by NASM315. The Part Identification Number (PIN) for AN315 REV. 10 and the part number for NASM315 are identical. The part numbers have not been changed.