HOLO-KROME 72052 #8-32 X 1/4" براغي رأس مقبس | محرك مقبس سداسي | فولاذ سبائكي أكسيد أسود حراري (100 / عبوة)

Just put these in a small jig I was building, and the hex socket drive made torquing them down a breeze. The threads cut cleanly into the tapped holes without any binding or galling, which I appreciate on a batch this size.

I was worried the black oxide finish might rub off during assembly, but after installing a dozen in a steel jig, the coating held up perfectly with no residue. The hex drive seated firmly without stripping, which is exactly what I need for precision work.

These black oxide screws seated perfectly in my jig fixture without any stripping. The alloy steel feels much more robust than the cheap zinc-plated ones I used before.