HOLO-KROME 64074 3/8-16 × 1-1/4" براغي ذات رأس كبس بمقبس سداسي | رأس زر مع محرك سداسي | سبيكة فولاذ مع أكسيد حراري أسود (50 / عبوة)

I’ve been using these for a jig assembly and the black oxide finish really helps with corrosion resistance in my shop. The button head design sits flush, which is exactly what I needed for tight clearance.

Finally got around to swapping out the old hardware on my milling fixture, and these button heads fit perfectly in the counterbores thanks to the low profile. The black oxide finish looks great and seems like it'll resist rust way better than the plain steel ones I had before.

Needed a set of these for a jig I was building, and the black oxide finish on these is much more consistent than other fasteners I've used. They threaded in smoothly without binding.