B1/2-13 x 2 1/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR WB * 20 threads per inch

* 20 threads per inch (TPI)

The oval head design offers a finished look and prevents the screw from protruding above the surface

This 8-32 x 11/32 x 1/8 coarse thread standard pattern hex machine screw nut is made of zinc and is designed to be used with 8-32 screws

This 1/4-20 x 3/8 slotted pan external sems machine screw is fully threaded and made of zinc

The 1/4-28-

B1/2-13 x 2 1/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR WB * 20 threads per inch**B1 2 13 x 2 1 4 MS90728** * Alloy Steel B1821 Coarse Cap Screw * Conforms to ASTM A354BD standards * Zinc Yellow DFAR coating for corrosion resistance * Measures 1 2" 13 thread diameter by 2 1 4" length * Hexagonal head for easy installation and removal * Coarse threads provide secure hold in soft materials * Suitable for industrial, automotive, and construction applications