VXB
M4 8mm Long Knurled Head Steel Thumb Screw
M4 x 8mm Black Steel Knurled Head Thumb Screw
✔️ M4 x 8mm handy black steel thumb screw with knurled head
This single-pack M4 x 8mm knurled head thumb screw is a handy fastener for quick hand-tightening in fixtures, panels, jigs, and light mechanical setups. The steel body and grippy head make it easy to turn without tools.
✅ Thread size M4
✅ Length 8mm
✅ Knurled head for easy hand tightening
✅ Black steel construction
✅ Brand: VXB Bearing
✅ Pack size: 1 screw
Dimensions Table (metric only)
| Thread | Length | Material |
|---|---|---|
| M4 | 8mm | Steel |
💡 Why are knurled thumb screws useful in tool-free assembly applications?
They work well because the raised knurling increases grip for secure tightening by hand.
- Improves control when adjusting panels or brackets
- Helps prevent slipping during frequent tightening
- Ideal for spots where tools are not convenient
- Keeps setups quick, simple, and user-friendly
A solid choice when you want quick adjustments and easy, tool-free tightening every time.