Rock Solid 6 Pack M4 X 20mm Tee Wing Knobs Stainless Steel Thumb Screws No Sweat Hand Tightening Clamping Fasteners Heavy Duty Grip For Woodworking And Shop Projects

M4 heavy duty thumbscrews for shop projects
✔️ stainless steel tee knobs, M4x20mm thread, 304 grade set

These M4 clamping fasteners are hand tightening thumb screws designed to secure components on workbenches, jigs, and machining setups. You will often see them attached to wooden boards, metal racks, and electronic housing panels where quick manual adjustments are needed without wrenches. Each unit combines a black plastic wing handle with a full length threaded stud to keep things locked down tight during heavy shop tasks.

✅ Total Height measures 30 millimeters or 1.18 inch across the body
✅ Thread diameter sits at M4 with a precise 0.7 millimeter or 0.027 inch pitch
✅ Head Diameter spans 27 millimeters or 1.06 inch for wide leverage
✅ Stainless steel 304 core wrapped in black rubberized grip coating
✅ Comes as a complete pack containing six identical clamping units

💡 What makes stainless steel thumb screws ideal for workshop clamping rigs?

Machine shops lean toward these hand tightening fasteners because they make quick project tweaks super handy. They get the job done fast without needing a box end wrench hanging around. - Anti corrosion metallurgy fights away coolant spills and humid garage air without rusting up - Ergonomic tee wings give plenty of leverage so anyone can clamp heavy pieces without fancy torque tools - Full threading locks down into tapped holes smoothly while keeping the workbench completely clear ✝️