براغي رأس كبس HOLO-KROME 69410 M6-1 × 16 مم | محرك سداسي منخفض الرأس | سبيكة فولاذ مع أكسيد أسود حراري (100 / عبوة)

The low head profile on these M6 screws made flush mounting a lot easier on my jig than I expected. The black oxide coating seems evenly applied and held up well during assembly.

I needed some black oxide fasteners for a jig build, and these M6-1 x 16mm screws fit perfectly without stripping. The black oxide finish seems tough and uniform, and the low head hex socket was easy to drive with a standard key.

The low head profile made all the difference for a tight clearance on my precision fixture, and the black oxide finish looks great. Threads ran smooth without any binding, even on hardened steel.