Cup Point Set Screws 3/8-16 X 5/16 Stainless Steel 18-8 Hex Socket Drive Headless Grub Screw With Coarse Thread Internal Hex 5/16 Inch Length 100 Pack For Machinery And Mounts Heavy Duty

Heavy-Duty Stainless Cup Point Set Screws 3/8-16 x 5/16"
✔️ Coarse 3/8-16 thread, 5/16 in long, 18-8 SS, 100-pack

These cup point set screws are headless fasteners used to locate components on shafts where a cup-edge bite is ideal. They’re commonly used in machinery and mounts to secure pulleys, gears, collars, and other fixtures with minimal protrusion and strong holding power.

✅ Size: 3/8-16 coarse thread (0.375 in, 9.53 mm)
✅ Length: 5/16 in (7.94 mm)
✅ Drive: internal hex socket, 3/16 in (4.76 mm)
✅ Point: cup point design for positive bite
✅ Material: 18-8 stainless steel (304)
✅ Pack: 100-pack

💡 What is a cup point set screw used for in machinery and mounts? This handy fastener helps lock components onto rotating shafts without protruding. - It bites into the shaft to prevent slipping under load - Handy for securing pulleys, gears, collars, and hubs - Works well when shaft hardness differs from the mating part - Stainless steel versions resist corrosion in damp environments