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The self-piercing point allows the screws to be driven into metal without the need for pre-drilling
The unslotted hex washer head provides a secure grip
The fully threaded design provides a strong hold and prevents the screw from loosening over time
1/2-20 x 1 1/4 Fine Thread Socket Head Cap Screw Black DFAR
and construction applications where durability and resistance to rust and chemicals are required
B3/4-10 x 2 1/2 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR NF5CB The self-piercing point allows theB3 4 10 x 2 1 2 MS90728 is an Alloy Steel B1821 Coarse Cap Screw that conforms to the specifications of ASTM A354BD. It has a diameter of 3 4 inch, a length of 2 1 2 inches, and a coarse thread pitch. The screw is made of alloy steel and has a zinc yellow chromate finish. It is designed for use in high strength applications and meets the requirements of the Defense Federal Acquisition Regulation Supplement (DFARS).
