12 Pack 1/4-20 Black Star Knobs With Grippy Knurled Hand Grip, Thumb Screws And Bolts, Replacement For Umbrella Base, Female Threaded Hex Head Through Knob, Durable Plastic And Metal Construction

12 Pack 1/4-20 Black Star Knobs for Quick Clamping
✔️ 1/4-20 thread, 25mm head (1.0"), 20mm length, 12 pcs

These black star knobs fuse durable plastic with metal to deliver a rugged, comfortable grip for quick adjustments. The star-shaped knurled design makes them ideal for tight spaces in clamps, bases, and small fixtures across automotive, woodworking, and workshop setups.

✅ 1/4-20 male thread
✅ Head diameter 25mm (1.0")
✅ Screw length 20mm (0.79")
✅ Pack: 12 pieces
✅ Material: Plastic + Iron

💡 What is a hand grip knob used for in shop fixtures and clamps?

Hand grip knobs are handy for quick, tool-free adjustments and secure tightening in tight spaces.

- quick adjustments in clamps and bases for handy use - 1/4-20 thread fits most fixtures and bases - star knurling provides better grip and control during tightening