براغي تثبيت سداسية برأس مقبس بنقطة كوب مخروطية 3/4-10 × 1-3/4" | فولاذ سبائكي (25 / عبوة)

The hex socket drive let me really crank these down in a tight spot without stripping. Used them to lock a heavy-duty pulley assembly and they've held solid with zero vibration loosening.

The knurled cup point bit into the shaft perfectly without slipping, even under heavy torque. These set screws are solid and feel much tougher than the cheap ones I’ve used before. Exactly what my project needed.

I needed these for a stubborn timing pulley that kept slipping, and the hex socket drive made it easy to torque them down in a cramped spot. The alloy steel feels solid and the knurled cup point really digs in tight.