4-40 x 1/4 MS35275, Military Drilled Fillister MS Screw Coarse Thrd 300 Series S/S DFAR 5/16-18-2 The screw is also coated

The screw is also coated with wax to help prevent corrosion

which means it can create its own threads in the metal

and other applications where a secure and adjustable fastening is required

These 10-16 x 1 1/4" Square Drive Pan Self Tapping Screws Type AB are fully threaded and made of zinc-plated steel

4-40 x 1/4 MS35275, Military Drilled Fillister MS Screw Coarse Thrd 300 Series S/S DFAR 5/16-18-2 The screw is also coated4 40 x 1 4 MS35275 is a military grade screw with a drilled fillister head and a coarse thread. It is made of 300 series stainless steel and meets the requirements of DFAR (Defense Federal Acquisition Regulation Supplement). The screw has a diameter of 4 40 and a length of 1 4 inch. It is designed for use in military applications where high strength and corrosion resistance are required.