براغي رأس مقبس M6-1 X 70mm | رأس زرية بمحرك سداسي | ملولبة بالكامل | فولاذ سبائكي فئة 10.9 مؤكسد أسود حراريًا (200 / عبوة)

The black oxide coating on these screws is more consistent than I expected, and they seated perfectly in my jig setup. For the price, getting 200 pieces with that tough Class 10.9 alloy steel feels like solid value for precision work.

The hex socket drive on these M6 screws bit cleanly with my Allen key, no stripping or slipping even when I torqued them into a steel jig. All 200 arrived with a consistent thermal black oxide finish, and the 70mm length was spot on for my precision assembly.

I was a bit worried the black oxide finish wouldn't hold up on my jig, but after a week of constant clamping and adjusting, these screws still look and turn perfectly. The hex socket drive grips the Allen key without any slipping, and the 10.9 alloy steel feels seriously solid.