HOLO-KROME 76364 براغي رأس مقبس M12-1.75 × 30 مم | محرك مقبس سداسي | سبائك فولاذ أكسيد أسود حراري (100/عبوة)

I needed some strong bolts for a precision assembly and these socket caps fit perfectly with their black oxide finish. The hex drive really grips the Allen key well without any stripping.

These M12 bolts were perfect for a new jig I'm building; the black oxide finish gives them a clean, professional look and they threaded smoothly into tapped holes without any binding.

Used a few of these to rebuild a jig fixture at work, and the threading cut in smoothly even into hardened steel. The black oxide finish held up well against minor coolant splash during the first shift. Exactly what I needed for a tight-tolerance assembly.