B1/2-13 x 3 1/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR KW5 This screw features a square

This screw features a square drive head designed for use with a square drive bit

The screw is finished with a wax coating to provide additional protection against corrosion and to make it easier to drive into place

Crafted from durable steel and coated with mechanical zinc yellow for corrosion resistance

These 10 x 5 Square Flat Nibs Deck Screw Type 17 2/3 Thread Zinc Bake 1

The screw has a self-drilling tip that makes it easy to install

B1/2-13 x 3 1/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR KW5 This screw features a squareB1 2 13 x 3 1 4 MS90728 is an alloy steel coarse cap screw that conforms to ASTM A354BD specifications. It has a diameter of 1 2 inch, a thread pitch of 13 threads per inch, and a length of 3 1 4 inches. The screw is zinc plated yellow and meets DFAR requirements. It is commonly used in industrial and construction applications where high strength and corrosion resistance are required.