Bulk 5/16"-18 Unslotted Indented Hex Washer Thread Cutting Screw Type 23 – Full Thread Zinc-Bake Length:1500 Qty - 5/16-18 x 3/4" 6-Lobe Drive: Torx-style recess delivers

6-Lobe Drive: Torx-style recess delivers higher torque transfer and virtually eliminates cam-out

cam-out-resistant engagement

Head / Drive: Slotted indent hex-washer (5/16″ AF) — dual-drive flexibility for tight spots or power tools

snag-free seating—ideal for trailer decks

Bulk 5/16"-18 Unslotted Indented Hex Washer Thread Cutting Screw Type 23 – Full Thread Zinc-Bake Length:1500 Qty - 5/16-18 x 3/4" 6-Lobe Drive: Torx-style recess deliversMonster 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