#8 x 1/2 in zip screw for sheet metal has dual thread design to provide penetrating power and fast engagement. The package contains 4 clear jars of 100 screws each. Screws come with slotted hexagonal head with flat washer.
- Made of zinc plated carbon steel
- Recommended drill speed 1,800 – 2,500 rpm
- Made as per SAE J78 specifications
- Sharp tapered point will not spread, break or walk
- Serrations at the bottom of head lock in the screw













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