Black Plastic Head Through Knob Set With Brass Insert 3/8-16 Female Thread Star Nut Style Clamping Knobs 30 Pcs For Heavy Duty Fastening Easy DIY Assembly And Secure Bolt Clamps

Black 3/8-16 Star Nut Clamping Knob Set, 30 Pcs ✔️ 30‑pc pack; 3/8-16 female threads; head 1.57in (40mm)

These star-nut style clamping knobs leverage a brass insert within a durable plastic body, delivering steady, heavy-duty fastening for machine tools, fixtures, and DIY projects. The through-knob design accepts bolts for secure, hand-tightened clamping in work-holding applications.

✅ Brass insert molded in durable plastic knob for long life
✅ 3/8-16 female thread to match standard bolts for clamps
✅ Head diameter 1.57 in (40 mm); total height 0.59 in (15 mm)
✅ Pack of 30 knobs; black color fits many workflows
✅ Star Nut Style design enables easy hand tightening without tools

💡What is a 3/8-16 clamping knob used for in workshop setups?

This handy hardware helps quickly secure workpieces during setup.

• hand-tighten for fast adjustments on clamps and fixtures
• fits 3/8-16 bolts commonly used in machine tools
• offers tool-free adjustments in jigs, fixtures, and fences

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