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2 inches outer diameter
which allows for easy insertion and removal
This lock washer is designed to prevent loosening of nuts and bolts due to vibration or other forces
It has a square head with a washer face and a fully threaded body
It is made from durable steel and has a nickel-plated finish for corrosion resistance
B3/8-16 x 3 1/2 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR CSBM 2 inches outer diameterThe B3 8 16 x 3 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 8 inches, a thread pitch of 16 threads per inch, and a length of 3 1 2 inches. The screw is made of alloy steel and has a zinc yellow chromate finish. It is manufactured in accordance with the Defense Federal Acquisition Regulation Supplement (DFARS) and is intended for use in aerospace applications.
