Cup Point Socket Set Screw 5/16-18 By 3/8 Inch Alloy Steel Black Oxide Hex Socket Grub Screw Pack Of 100 Heavy-Duty Coarse Thread For Rock-Solid Joints And Quick, Durable Holds

Cup Point Socket Screws 5/16-18, 3/8 in Steel Pack 100
✔️ Coarse 5/16-18 thread, 3/8 in length, cup point, hex drive 5/32

Cup point set screws are headless fasteners threaded along their length, with a cup-shaped tip. They’re used to locate and secure components on shafts in machines, clamps, and assemblies where a flush surface is required and space is tight.

✅ Thread: 5/16-18 coarse; length 3/8 in (9.53 mm)
✅ Cup point design for secure grip on shafts
✅ Internal hex drive size: 5/32 in for standard Allen wrenches
✅ Material: alloy steel with black oxide; not ideal for moisture
✅ Pack size: 100 pieces for bulk, heavy-duty use
✅ Works with 10-15 Rockwell C shaft hardness assumptions

💡 What is a cup point set screw used for in fastening? This handy fastener locates parts on shafts and provides a flush, secure grip. - cup point set screw for secure, flush mounting on shafts - 5/16-18 coarse thread with 3/8 in length fits common hardware - internal hex drive accepts 5/32 in Allen key for quick installs