براغي سوكيت ذات نقطة كوب HOLO-KROME 33116 3/8-24 X 1-1/4" | فولاد سبائكي مع أكسيد أسود حراري (100 / عبوة)

The black oxide finish on these set screws looks great and seems durable. They threaded smoothly into my tapped holes with no binding, and the cup point bit firmly into the shaft. Exactly what I needed for a heavy clamping application.

Used these to secure a pulley on a keyless shaft and the cup point bit in nicely without stripping. Pack of 100 means I’ll have spares for future projects, and the threads engaged smoothly right out of the box.

The black oxide finish on these set screws gives them a nice grip, and they threaded smoothly into a steel hub for a shaft collar I was repairing.