Bulk 5/16"-18 Unslotted Indented Hex Washer Thread Cutting Screw Type 23 – Full Thread Zinc-Bake Length:1500 Qty - 5/16-18 x 1/2" 9 Coarse Alloy Zinc CR+3

9 Coarse Alloy Zinc CR+3 Bake (PT & Tap Bolts)

then factory wax-lubed for repeatable low drive torque

Material & Finish: Heat-treated carbon steel

these fasteners cut clean internal threads in sheet metal

Coating: Zinc Yellow CR+6 for enhanced corrosion resistance

Bulk 5/16"-18 Unslotted Indented Hex Washer Thread Cutting Screw Type 23 – Full Thread Zinc-Bake Length:1500 Qty - 5/16-18 x 1/2" 9 Coarse Alloy Zinc CR+3Monster Overview: Tap crisp 5 16 18 threads straight into mild steel, stainless sheet, or aluminum channel with Unslotted Indented Hex Washer Head Thread Cutting Screws, Type 23, Bright Zinc Bake. The robust across flats hex head delivers maximum torque via any nut driver or impact socket, while a Type 23 triangular chip relief pocket ejects swarf as it tapsreducing drive torque and leaving clean internal threads. A broad, non serrated washer flange