براغي رأس مقبس M16-2 × 20 مم | رأس مسطح، محرك سداسي | كامل الخيوط | فئة 10.9، فولاذ سبائكي، أكسيد أسود حراري (50 / عبوة)

The black oxide finish on these screws looks clean and professional, and the hex drive made tightening them into my tooling fixture a breeze. Fit perfectly in the threaded holes with no binding at all.

The hex socket drive made it easy to tighten these into my jig frame without stripping the head, and the black oxide finish looks sharp against the steel. They held firm under heavy clamping pressure, exactly what I needed for precision assembly work.

I needed a batch of strong, black-finished fasteners for a jig I’m building, and these M16-2 x 20mm screws with the hex socket drive are exactly what I was looking for. The black oxide coating looks tough and matched my existing hardware, and the class 10.9 alloy steel feels solid.