National Aerospace Standard (NAS) machine bolts are commonly used in aircraft, space shuttles, military vehicles, drones, and other high-performance applications. They are offered in different series to meet application requirements. NAS 6203 through NAS 6210 series include hex head, close tolerance, alloy steel, short thread, self-locking & non-locking bolts.
Sourced from quality producers, NAS 6203 through NAS 6210 series are offered as part of our own labelled (AVIATIONEU NEW ERA) lines of fasteners. These fine-threaded, dimpled-head hex bolts have a minimum tensile strength of 160,000 psi and a minimum shear strength of 95,000 psi. Thread length is consistent within each diameter (NAS 1103/6203 series have a shorter thread), and grips are available in 1/16” increments beginning at 1/16”. Used in applications where a premium-quality, high strength bolt is necessary. They come in different nominal diameters: NAS 6203: 3/16 in. (0.1875"), NAS 6204: 1/4 in. (0.25"), NAS 6205: 5/16 in. (0.3125"), NAS 6206: 3/8 in. (0.375"), NAS 6208: 1/2 in. (0.500"), NAS 6210: 5/8 in. (0.625").
NAS 6205 series shear hexagon head bolts with a 5/16-24" thread supersede NAS 1105 high strength bolts. Their shearing feature is used to minimize damage to critical components of the application. They are made from alloy steel with cadmium or chromium finishes and offered in different grips and lengths in inches with undrilled or drilled head and/or shank. They are sold in pieces.
The following letters after the basic part numbers specify the material, finish and drilling condition of these bolts.
No Finish Code for cadmium plated bolts
"C" for chromium plated bolts
"L" / "P" for self-locking bolts/self-locking bolts with patch type locking element only
Grip Dash Number indicating grip in .0625 increments
"D" after the grip dash number for drilled thread bolts
"H" after the grip dash number for bolts with drilled head
More than one code letters may be used in sequence.
For more information, please refer to the supplied documentation or contact us.