Cup Point Socket Set Screws 4-40 X 3/32 Inch Alloy Steel Black Oxide Finish Hex Socket Grub Screws Coarse Thread Headless Allen Style 100 Piece Pack For Precise Secure Fastening In Machinery And Fixtures

Cup Point Socket Set Screws 4-40 x 3/32in - 100pc Pack
✔️ Coarse 4-40 thread, 3/32in length, cup point, alloy steel

This cup point set screw is a headless, fully threaded fastener designed to lock parts on shafts with a precise bite. Its cup-point and internal hex drive make it a common choice in machinery and fixtures where parts must stay in place along rotating shafts. The black oxide finish gives decent wear resistance, but note it isn’t a moisture-proof coating.

✅ Thread: 4-40 coarse thread, 3/32 in length
✅ Material: Alloy steel with black oxide finish
✅ Drive: Internal hex socket size 0.050 in (1.27 mm)
✅ Type: Cup point, headless, fully threaded
✅ Pack: 100 pieces in this set

💡 What is a cup point set screw used for in machinery? These handy fasteners lock components on shafts with a cup-point bite for a secure grip in fixtures and machinery. - handy for securing pulleys, collars, and gears on shafts without protruding heads
- effective when shaft hardness varies to prevent slip
- sized for precise 4-40, 3/32in length applications in an alloy steel black oxide option