B1/2-13 x 3 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR CH9F The bolt has a ribbed

The bolt has a ribbed neck that helps to prevent it from turning in the wood

meaning it can create its own threads as it is driven into a surface

Secure your outdoor structures with these premium 14-8 x 3" Bugle Square Drive Coarse Thread Type 17 Point Deck Screws

8-18 x 1 1/8 #6 HD Phillips Pan High Low Screw Fully Threaded 410 Stainless Steel:

while the Grade 2 rating indicates that it is suitable for moderate loads

B1/2-13 x 3 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR CH9F The bolt has a ribbedB1 2 13 x 3 MS90728 is a coarse thread cap screw made of alloy steel per ASTM A354BD. It has a diameter of 1 2 inch, a length of 3 inches, and a zinc yellow chromate finish. The screw meets the requirements of the Defense Federal Acquisition Regulation Supplement (DFARS). It is commonly used in various industrial and construction applications where high strength and corrosion resistance are required.