Hella Tough 5/16 By 3/4 Inch Thumb Screws Fabricated From 304 Stainless Steel In Matte Black With Chunky Rounded Clamping Knobs For No Sweat Hand Tightening On Jigs Fixtures And Workshop Machinery Gear Setup 4 Piece Pack

Matte 5/16 thumb screws with chunky grabs for shop jigs
✔️ 304 steel body, thermoplastic head, 5/16 18 thread, 4 pack

These hand tighten fasteners swap out awkward wrenches for quick jig adjustments.

✅ 5/16 inch bolt shank measures exactly 8 millimeters across
✅ 3/4 inch screw length converts to roughly 19 millimeters long
✅ 1 1/2 inch knob span wraps around 38 millimeters wide
✅ 1/2 inch plastic rim thickness equals approximately 13 millimeters deep

💡 Why choose handy manual grip clamp bolts over standard hex hardware

Picking manual thread fasteners saves actual hours when resetting fixtures daily.

- Corrosion proof steel cores maintain steady torque under heavy shop vibration - Polymer topped heads absorb impact noise when tapping assemblies into place - Unified thread pitches drop perfectly into existing vice plates and drill presses - Rounded ergonomic rims let your thumbs control clamp pressure without slipping ✝️