براغي رأس مقبس M6-1 × 95mm | محرك سداسي | جزئية الخيوط | سبيكة فولاذ درجة 12.9 مؤكسد أسود حراري (100 / عبوة)

The 12.9 grade alloy steel feels incredibly tough compared to the standard fasteners I've used before, and the black oxide finish has held up well in my shop's humid environment.

Used these for a jig I’m building, and the 95mm length worked perfectly for a thicker bracket setup. The black oxide finish seems durable and didn’t chip during tightening.

Was a bit worried about how these M6s would hold up in my precision fixture, but the 12.9 grade alloy steel and black oxide finish are clearly a step above standard hardware. They thread in smoothly and the partially threaded design let me get a solid clamp depth I needed.