B3/8-16 x 4 1/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR DQFDBPT These 5-20 x 1 Phillips

These 5-20 x 1 Phillips flat self-tapping screws are Type AB fully threaded screws made of zinc

and is Grade 8 for superior strength

This nut is corrosion-resistant and can be used in a variety of applications

They feature a slotted indented hex washer head that provides a secure grip and prevents the screw from slipping

B3/8-16 x 4 1/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR DQFDBPT These 5-20 x 1 PhillipsB3 8 16 x 4 1 4 MS90728 is a Coarse Cap Screw made of Alloy Steel B1821. It meets the specifications of ASTM A354BD and has a Zinc Yellow DFAR finish. The screw has a diameter of 3 8 inches, a length of 4 1 4 inches, and a thread pitch of 16 threads per inch. It is designed for use in high strength applications and is resistant to corrosion.