4 Pack M8 Star Clamping Knobs With 39mm Large Plastic Five Star Heads For Easy Hand Tightening, 25mm Thread, Black Jig Knob Handles For Routers Mills 3D Printers And Metalworking Projects
✔️ M8 x 1.25 thread, 25mm stud, 39mm head, 44mm overall length
These hand-tightening clamping knobs use zinc-plated carbon steel studs paired with a durable PP plastic five-star handle for reliable grip and longevity. The four-pack is ideal for quick, tool-free clamping in machinery, electronics, furniture, and bench setups such as drill presses, lathes, routing jigs, fixtures, packaging lines, 3D printers, and woodworking projects.
✅ Thread: M8 x 1.25; stud length 25mm (0.98")
✅ Head: 39mm diameter x 19mm thick (1.54" x 0.75")
✅ Overall length: 44mm (1.73"); step size 21mm x 7mm (0.83" x 0.28")
✅ Material: zinc-plated carbon steel studs with PP plastic star handle
✅ Color: black; grip designed to prevent slip
✅ Applications: drill presses, lathes, routing jigs, fixtures, packaging, woodworking machines, printers
✅ Pack: 4 pieces per set
💡 What is a handy hand tightening knob used for in machining and assembly?
💡 Common use is quick, tool-free clamping for fixtures and jigs in a shop setting. - handy for securing drill presses, milling machines, routers and fixtures- ergonomic five-star grip improves turning control and reduces slipping
- durable zinc-plated and plastic construction stands up to daily shop wear
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