HOLO-KROME 87115 براغي رأس كب M6-1 × 60 مم | رأس مسطح بمحرك سداسي | فولاذ سبائكي مؤكسد أسود حراري (100 / عبوة)

Picked up a pack for some jig repairs and the black oxide finish is holding up nicely against the light oil I’m using. These M6 screws threaded cleanly into the aluminum without any binding, which was my main worry. I’ve already ordered another box for future projects.

The flat head sits perfectly flush in my drilling jig, and the black oxide finish looks clean even after some use. Each screw threaded smoothly without any binding.

Installed a batch on a custom jig this afternoon and the flat heads sat perfectly flush, no wobble. The 60mm length gave me just enough thread engagement in the steel plate.