M4 30mm Long Knurled Head Steel Thumb Screw

M4 x 30mm Black Thumb Screw
✔️ Knurled Head - Steel - Easy Grip Design

This M4 x 30mm black steel thumb screw comes with a knurled head for quick hand-tightening without tools. Built from durable steel and finished in black, it’s ideal for enclosures, DIY rigs, and light machinery where a tool-free setup or adjustment is key.

✅ Thread size: M4
✅ Length: 30mm
✅ Head style: Knurled for hand grip
✅ Finish: Black oxide
✅ Material: Steel
✅ Sold individually (1 screw per pack)

💡 What’s a knurled thumb screw used for in mechanical setups?
Knurled thumb screws allow easy tightening or loosening by hand, perfect for tool-free adjustments in everyday or industrial use.

• Great for electronics, panels, or temporary fixtures

• Knurled head gives better grip and control

• Saves time during frequent assembly or removal

Handy for any spot where tools slow you down.
Grab a few today and make your setups smoother and quicker!