Allied Bolt #8x3/4" Slotted Hex Washer AB Tapping Screw Zinc Plated 100/Box - 136
$7.50
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Used to “tap” their own mating internal thread when driven into preformed holes in metallic materials. Does not require a preformed hole in wood. Case hardened so surface has a minimum Rockwell Hardness of C45. Manufactured from AISI 1016 Steel. Saw slotted for deep even groove. All sizes are fully threaded. Zinc plated to meet ASTM Specification F1941. Screws conform to the dimensions of ASME B18.6.3 Box of 100
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