براغي رأس أسطوانية M6-1 X 6mm | محرك سداسي | خيط كامل | فئة 12.9 سبيكة فولاذ أكسيد أسود حراري (400 / عبوة)

The hex socket drive seated perfectly on my Allen key, no wobble at all, and the black oxide finish looks uniform across all 400 pieces. Just finished a jig build with these and the 12.9 hardness gave me confidence torquing them down tight. Solid buy for precision work.

I needed small, precise fasteners for a jig I was building, and these M6-1 x 6mm screws fit the bill perfectly. The black oxide coating feels durable, and the hex socket drive made installation quick and clean.

Finally, a set of M6 screws that actually hold up under high torque without stripping. The 12.9 alloy steel and black oxide finish make these feel premium for jig building.