براغي رأس مقبس HOLO-KROME 76423 M16-2 X 25mm | محرك مقبس سداسي | فولاد سبائكي مؤكسد أسود حراري (25 / عبوة)

The black oxide coating gives these a clean, uniform finish that looks great in the tooling fixture I mounted them in. Threads engaged smoothly with no binding, and the hex socket drive seated perfectly with my driver. Solid feel for the price.

The black oxide finish on these M16 screws handled a greasy machining job without any staining, and the hex socket drive made tightening them in a tight spot easy. They seated cleanly into the jig plate with no wobble or cross-threading issues.

Grabbed these for a jig I’m building and the black oxide finish makes them look clean and resist surface rust nicely. The socket drive is snug and the threads feel precise, no wobble when tightening.