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These 4-40 x 1 Phillips flat 100º machine screws are fully threaded and coated in black oxide for corrosion resistance
These 1/4-20 Serrated Flange Hex Lock Nuts are made of 18-8 stainless steel
The hexagonal head provides ample grip for easy installation with a wrench
They are also known as prevailing torque nuts or lock nuts
9 property class indicates a tensile strength of 1090 MPa
5/16-18 x 2 3/4 Slotted Flat Machine Screw Fully Threaded Zinc NCWA These 4-40 x 1 PhillipsThe 5 16 18 x 2 3 4 Slotted Flat Machine Screw Fully Threaded Zinc is a screw with a diameter of 5 16 inches and a length of 2 3 4 inches. It is made of zinc and has a slotted drive. The screw is fully threaded, meaning that the threads extend the entire length of the screw. This type of screw is commonly used in a variety of applications, including construction, manufacturing, and automotive repair.
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