HOLO-KROME 33106 براغي ضبط تجويف بنقطة كأس 3/8-24 X 3/8 بوصة | فولاذ سبائكي أكسيد أسود حراري (100 قطعة/عبوة)

Needed a precise fit for a small clamping job, and these set screws threaded in smoothly without any binding. The black oxide finish seems decently durable and the cup point bit held firm under torque.

The hex socket drive seated perfectly on my wrench, no stripping or wobble even after tightening them down hard. All 100 pieces came clean and uniform, threads were crisp right out of the package.

The black oxide finish on these cup point screws holds up well even after a few rounds of torquing and loosening. I used them to secure a gear on a shaft, and the hex socket drive made installation feel precise and controlled.