100 Pcs M4 X 8mm Stainless Steel Hex Socket Set Screws Grub Screws With Beefy Allen Head Built To Last, 304 Stainless, Includes M2 Allen Wrench, Durable And Corrosion Resistant Fasteners For Tough Jobs

100 Pcs M4 x 8mm 304 Stainless Set Screws with M2 Wrench
✔️ Includes 100 M4 x 8mm cup point grub screws and a M2 Allen wrench

These M4 x 8mm stainless steel set screws are headless grub screws used to secure gears, pulleys, or handles to shafts. They sit flush or below the surface after installation, making them ideal for both hobby projects and heavy machinery where a clean finish matters.

✅ Diameter 4 mm (0.157 in), length 8 mm (0.315 in), cup point grub screw
✅ Material: 304 stainless steel for corrosion resistance
✅ Drive: recessed hex socket for M2 hex wrench
✅ Headless design sits flush or below the surface after installation
✅ Quantity: 100 pieces per pack
✅ Includes 1 M2 Allen wrench for easy tightening

💡 What is a set screw used for in mechanical assemblies? A handy fastener for securing parts without a protruding head. - Handheld or industrial projects rely on set screws to lock gears or pulleys to shafts - Cup point bites into the mating surface for a solid grip - 304 stainless steel provides rust resistance in moisture-rich environments - Use an Allen key to apply controlled torque and prevent over-tightening