HOLO-KROME 76440 M16-2 X 50 مم براغي رأس اسطوانية | محرك سداسي | سبيكة فولاذ بأكسيد أسود حراري (25 / عبوة)

The hex socket drive seated perfectly on my driver without any wobble, and the thermal black oxide coating looks evenly applied across all 25 screws. I used them to bolt down a steel jig plate and the M16 threads cut cleanly, no binding at all. Solid choice for precision work.

The black oxide finish on these M16-2 socket cap screws is flawless and really stands up to heavy use in our jig setup. They threaded smoothly into the steel fixture without any binding, which I’ve had issues with on cheaper fasteners.

Used these for a precision fixture at work and the black oxide finish held up perfectly against mild corrosion. The hex drive seated cleanly without any stripping.