4-40 x 1/2 MS51959, NASM51959 Phil Flat Machine Screw Full Thread 300 Series S/S DFAR M3.5-.0.6 It features a knurled head

It features a knurled head that provides a comfortable and non-slip grip for easy tightening and loosening by hand

it provides exceptional resistance to wear and tear

They are made from high-strength steel and are heat treated for added durability

The M6-1 x 100 Metric Socket Head Cap Screw Class 12

4-40 x 1/2 MS51959, NASM51959 Phil Flat Machine Screw Full Thread 300 Series S/S DFAR M3.5-.0.6 It features a knurled head4 40 x 1 2 MS51959, NASM51959 Phil Flat Machine Screw Full Thread 300 Series S S DFAR are high strength, corrosion resistant screws designed for use in aerospace and other demanding applications. They are made from 300 series stainless steel and have a full thread design that provides maximum holding power. These screws meet the requirements of MS51959 and NASM51959 specifications and are DFAR compliant. They are available in a variety of lengths and