HOLO-KROME 33066 #10-32 × 3/4" براغي تثبيت ذات رأس كروي | فولاذ سبائكي مؤكسد أسود حراريًا (100 / عبوة)

The cup point bites into the shaft exactly as it should, and the hex socket drive makes tightening in tight spots a breeze. I’ve used cheaper set screws before, but the thermal black oxide finish here is the real deal—no stripping or rust after a week of heavy use.

Used these to secure a gear on a motor shaft and the hex drive made installation a breeze. The black oxide finish looks clean and seems durable.

The cup point bites into the shaft exactly where you set it, and the hex socket drive made tightening in a tight spot pretty painless. Ten of them went in without a single stripped thread, which is more than I can say for cheaper packs I've tried.