M6 20mm Star Hand Knobs Set Black Plastic Hex Clamping For Umbrella Bases

M6 20mm Star Hand Knobs for Umbrella Base Clamps in Black
✔️ 4pcs M6x20mm hand knobs, star plum blossom head, 1.0mm pitch

These M6 x 20mm star hand knobs are compact, ergonomic fasteners designed for quick, tool-free clamping on umbrella bases, racks, speaker stands, and other gear. Note: M threads are not compatible with US standard threads.

✅ 4 pieces included for a complete set
✅ Thread size M6 x 20mm (0.229" x 0.788"); pitch 1.0mm (0.039"); head diameter 37.21mm (1.465"); outer thread diameter 5.82mm (0.229")
✅ Plum blossom head is durable plastic; smooth, burr-free threads for easy rotation
✅ Carbon steel screw with zinc-plated finish; high hardness and secure fastening
✅ Easy to install by hand; ergonomic grip and won’t scratch hands

💡 What is a hand knob used for in equipment setups? This handy fastener lets you tighten parts by hand for quick adjustments. - Handy for fast, tool-free tightening on racks, stands, and fixtures - Works with M6 threaded holes and 20mm length for compact clamps - Plastic plum blossom head provides comfortable grip; steel screw for durability - Helps reduce setup time and avoids tool damage