HOLO-KROME 60078 براغي رأس مقبس 5/16-18 × 3/4 بوصة | رأس مسطح بمقبس سداسي | فولاذ سبائكي بأكسيد أسود حراري (100 / عبوة)

The flat head design on these sits perfectly flush in my jig, and the hex socket drive grips without any stripping issues. Managed to bolt down a whole fixture plate with the full hundred pack and every single one threaded cleanly.

The black oxide finish on these screws matched perfectly with my jig build, and the flat head sat flush without any wobble. They threaded cleanly into pre-tapped holes for a precision assembly I was working on.

These screws held up great on my latest jig project, the black oxide coating handled the tight fit without any galling. I was really impressed that all 100 had clean threads and consistent depth across the batch.