براغي تثبيت سداسية M16 × 40 مم بنقطة كوب | فولاذ سبائكي مطلي بالزنك (50 / عبوة)

These set screws bite into the shaft firmly once tightened, and the zinc plating on all 50 pieces looks even and chip-free. I used them for locking a heavy gear and haven't had any slippage—exactly what I needed for a high-torque application.

Installed these set screws on a heavy-duty conveyor roller and the cup point bit into the shaft perfectly, no slipping. The 40mm length gave me just enough thread engagement for a secure hold.

The hex socket drive made it easy to get these into a tight spot without stripping the head. The cup point tip seated flush against the metal frame exactly as needed.