HOLO-KROME 32188 3/8-16 X 2" براغي مقبس كوب بوينت | فولاذ سبائكي أكسيد أسود حراري (50 / عبوة)

Finally got around to swapping out some worn set screws on a conveyor roller and these cup points bit in perfectly without stripping. the hex drive felt solid and the 2" length gave plenty of thread engagement in a deep tapped hole.

The black oxide finish on these set screws held up perfectly when I tightened them down on a sprocket hub, no galling or stripping at all. I’ve used cheaper cup points before, but these seated firmly without any wobble. Exactly what I needed for a reliable mechanical lock.

The hex socket drive grabbed my Allen key cleanly with no stripping, even when I torqued them down hard. The thermal black oxide coating looks uniform across all fifty pieces. These cup points held a pulley on a shaft through a full shift with zero slip.