براغي مقبس نقطة كوب مع رقعة نايلون 7/8-9 × 1-1/2 بوصة | فولاذ سبائكي (25 / عبوة)

The hex socket drive made it easy to tighten these in a tight spot on my machine, and the nylon patch held firm after a week of vibration. Cup point digs in nicely without damaging the shaft. Exactly what I needed.

The nylon patch locking feature is a game-changer for keeping these set screws secure under vibration. I used them on a heavy-duty fixture and they haven't budged at all. The alloy steel feels robust and the threads cut cleanly.

The hex socket drive let me torque these down in a spot where a wrench wouldn't have fit. The nylon patch held them securely even after a couple of adjustments, and the cup point bit into the shaft exactly as hoped.