براغي رأس كبس M4-0.7 × 6 مم | محرك سداسي | خيط كامل | فولاذ سبيكة فئة 12.9 مع أكسيد أسود حراري (900 / عبوة)

The black oxide finish is consistent across all 900 pieces, no stripped threads or burrs straight out of the box. I've used them for a jig build and they drive smoothly with a hex key, seating flush without any wobble. Solid purchase for precision work.

These little screws have a nice, even black oxide finish that looks great on the tooling jig I'm building. The hex sockets are crisp and didn't strip out when I torqued them to spec. Solid value for a full 900-pack.

I needed a full pack for a custom jig setup, and these M4 socket cap screws threaded smoothly into tapped holes without any binding. The hex socket drive held the driver bit perfectly, which saved time during assembly.