B5/8-18 x 3 3/4 MS90727, Alloy Steel B1821 Fine Cap Screw Per ASTM A354BD Zinc Yellow DFAR 7/8 These screws are made of

These screws are made of steel and are heat treated for added strength

this screw effortlessly penetrates surfaces

3/8-16 x 2 Slotted Indented Hex Washer Thread Cutting Screw Type F Fully Threaded Zinc:

It is designed with an alternate external tooth washer thread rolling design

while the internal teeth grip the mating surface

B5/8-18 x 3 3/4 MS90727, Alloy Steel B1821 Fine Cap Screw Per ASTM A354BD Zinc Yellow DFAR 7/8 These screws are made ofB5 8 18 x 3 3 4 MS90727 is an Alloy Steel B1821 Fine Cap Screw that conforms to the specifications of ASTM A354BD. It has a diameter of 5 8 inches, a length of 3 3 4 inches, and a thread pitch of 18 threads per inch. The cap screw is made of alloy steel and has a zinc yellow dichromate finish. It is designed for use in high strength applications and is compliant with the Defense Federal Acquisition Regulation Supplement (DFAR).