5/16-18 x 3 1/2 Phillips Flat Thread Cutting Screw Type F Fully Threaded Zinc 8-16 and the case hard zinc

and the case hard zinc plating provides excellent corrosion resistance

including wood and metal

It is used to prevent nuts and bolts from loosening due to vibration or other forces

while the 1/2-inch diameter and 2-inch length ensure a strong hold

it offers excellent resistance to corrosion

5/16-18 x 3 1/2 Phillips Flat Thread Cutting Screw Type F Fully Threaded Zinc 8-16 and the case hard zinc5 16 18 x 3 1 2 Phillips Flat Thread Cutting Screw Type F Fully Threaded Zinc Size: 5 16 18 x 3 1 2 inches Thread type: Flat thread cutting Drive type: Phillips Head type: Flat Material: Zinc Finish: Fully threaded This screw is designed for use in metal applications. The flat thread cutting design allows the screw to create its own threads in the metal, providing a secure hold. The Phillips drive type allows for easy installation with a Phillips