B1/2-13 x 4 3/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR NT3BZ and it is finished with

and it is finished with a cadmium plating for corrosion resistance

this washer provides reliable locking performance and long-lasting protection

The screw is made of zinc-plated steel for corrosion resistance and durability

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

8-32 x 1 1/4" 6-Lobe Pan Taptite Alternative Thread Roll Sc Fully Thrd 18-8 S/S Pass & Wax is a self-tapping screw made of 18-8 stainless steel

B1/2-13 x 4 3/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR NT3BZ and it is finished withB1 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