M4 X 4mm Set Screws, 304 Stainless Steel Hex Socket Grub Head, 4mm Length, Includes M2 Allen Wrench, Built Tough, Rust Resistant Hardware for Machinery, Electronics and DIY Projects
UPC:
✔️ Includes 110pcs M4 x 4mm screws and 1 M2 hex wrench
These M4 x 4mm set screws are 304 stainless steel, cup-point, hex socket grub screws. They’re ideal for securing gears, pulleys, or handles to shafts in machinery, electronics, and DIY projects.
✅ Diameter: 4mm; Length: 4mm; Cup point; Hex socket drive; Headless grub screw
✅ Material: 304 stainless steel; rust-resistant
✅ Package: 110 pcs + 1 M2 Allen wrench
✅ Applications: securing gears, pulleys, handles to shafts in machinery and DIY projects
💡 What is a set screw used for in mechanical assemblies? This handy fastener locks components in place to prevent slipping.
- locks a gear, pulley, or handle to a shaft to prevent slippage
- provides a flush surface when installed, saving space
- made from 304 stainless steel for corrosion resistance in tough environments
- tightened with an Allen key for controlled torque and repeatable clamping