Black Red Ball Handle Knobs – Plastic, M4 To M16 Threads, Metric Sizes

These are brand-new, unbranded plastic ball knobs in a classic black and red style.

They’re meant for all kinds of applications—machinery, jigs, fixtures, you name it.

You’ve got metric thread options ranging from M4 all the way up to M16, and the ball diameter varies from 16mm to 50mm depending on what you pick.

They’re made of durable plastic, with a round head and a simple one-way drive style.

No packaging fuss here, just the knobs as shown.

If you’re building or repairing something that needs a solid grip, these will do the trick.