B1/2-13 x 4 3/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR NT3BZ this washer provides reliable locking

this washer provides reliable locking performance and long-lasting protection

and it is finished with a cadmium plating for corrosion resistance

It is made from high-strength steel and features a HI-Hexwasher head for easy installation and removal

They have a sharp point and a single-flute thread design that allows them to tap their own threads in metal

B1/2-13 x 4 3/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR NT3BZ this washer provides reliable lockingB1 2 13 x 4 3 4 MS90728 is an Alloy Steel B1821 Coarse Cap Screw that conforms to the specifications of ASTM A354BD. It has a diameter of 1 2 inch, a thread pitch of 13 threads per inch, and a length of 4 3 4 inches. The screw is zinc plated yellow and meets the requirements of the Defense Federal Acquisition Regulation Supplement (DFARS). It is commonly used in industrial and construction applications where high strength and corrosion resistance are