براغي رأس مقبس M4-0.7 X 6mm | رأس زر محرك مقبس سداسي | ملولبة بالكامل | فولاذ سبائك فئة 10.9 أكسيد أسود حراري (1200/عبوة)

The black oxide finish on these M4 screws cleaned up beautifully with just a rag before assembly, no oil residue at all. I’ve used them on a small fixture and the hex drive seated perfectly every time, even in tight spots. Exactly what I needed for precision work.

I needed a bunch for a jig I was building, and the black oxide finish held up perfectly without any flaking during assembly. The hex socket drive gripped well even at higher torque, and the 1200-pack means I won't be reordering anytime soon.

Got these for my jig builds and they're impressively consistent — every single one in the bag threads clean without any burs or binding. The black oxide finish feels solid and they've held up through repeated tightening without stripping.