براغي غطاء مقبس HOLO-KROME 65024 1/4-28 X 1" | رأس زر محرك مقبس سداسي | فولاذ سبائكي أكسيد أسود حراري (50 / عبوة)

The black oxide finish really helps these button head screws resist rust in my shop. I used them on a jig I’m building, and the hex socket drive made installation quick with an Allen key. They’re solid quality for the price.

For a repair job on my milling machine's hold-down clamps, these button head screws fit perfectly and the black oxide finish resists chips and coolant. The hex socket drive grabbed firmly without stripping, even at higher torque.

I was swapping out the cheap hardware on my jig setup and these button heads torqued down nice and smooth without stripping. The thermal black oxide finish is holding up well against the coolant splashes so far, and having 50 in the pack means I've got spares for the next project.