B1/2-13 x 1 5/8 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR FPUB making it ideal for use

making it ideal for use in applications where vibration is a concern

and the black oxide oil finish provides corrosion resistance

It is designed for use in metal applications and features a hex head with an indented drive for increased torque and reduced cam-out

which means they can create their own threads in the material they are being driven into

This 5/16-18 x 3/4 Phillips pan machine screw is fully threaded and made of zinc

B1/2-13 x 1 5/8 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR FPUB making it ideal for useB1 2 13 x 1 5 8 MS90728 is an Alloy Steel B1821 Coarse Cap Screw. It conforms to the specifications of ASTM A354BD and has a Zinc Yellow DFAR finish. The screw has a diameter of 1 2 inch, a thread pitch of 13 threads per inch, and a length of 1 5 8 inches. It is made of alloy steel, which is a strong and durable material. The screw has a coarse thread, which provides a strong hold in materials such as wood and metal. The Zinc Yellow DFAR finish