Star Hand Tightening Screw Knob M8x20mm Clamping Handle For Umbrella Base Black

M8x20mm Hand Tightening Screw Knob Clamp, Black
✔️ M8x20 thread with head diameter 38mm, two-pack clamping knobs

These hand tightening screw knobs are compact clamps designed for fast, tool-free securing in various setups. They’re ideal for umbrella bases, speaker stands, woodworking jigs, and other mechanical equipment.

✅ Thread size: M8x20mm (0.31x0.79in); head diameter 38mm (1.50in)
✅ Materials: durable plastic body with carbon steel screw for strong bite
✅ Package: 2 black tightening screws included
✅ Applications: speaker stands, automotive mounts, woodworking jigs, and industrial gear

💡 What is a screw knob clamp used for in everyday workshop setups? This handy fastener makes quick, tool-free adjustments easy. - handy for quick mounting on M8x20mm threaded bases like speaker stands and umbrella bases - provides secure grip during tightening, reducing slips and hand fatigue - great for quick height or angle adjustments in hobby shops and light manufacturing