HOLO-KROME 32276 7/8-9 X 1" براغي تثبيت بنقطة كوب | فولاذ سبائكي مؤكسد حراريًا أسود (10 / عبوة)

The thermal black oxide finish on these set screws makes them look sharp and resists rust better than some others I've used. They threaded smoothly into a tapped hole on a heavy-duty shaft collar, and the cup point bit in firmly without slipping.

I needed a set screw that wouldn't strip under heavy torque, and these hex socket drives bit in without any cam-out. The cup point grabbed the shaft firmly, no slippage at all during assembly.

The black oxide finish held up perfectly during assembly, and the hex drive seated cleanly without any cam-out issues. These screws feel much more substantial than the cheap zinc-plated ones I've used before.