HOLO-KROME 87040 براغي رأس كبس M4-0.7 × 20 مم | رأس مسطح محرك سداسي | فولاذ سبائكي أسود حراري (100 / عبوة)

The black oxide finish wiped clean easily and the threads cut smoothly into my jig’s tapped holes without any binding. For the price, a hundred of these flat heads for precision work feels like a steal.

The black oxide finish on these M4 screws looks great and seems durable. I used them to secure a metal bracket on a small assembly table, and the flat head sits perfectly flush.

Picked up a pack for a small jig I was building out of aluminum, and the black oxide finish makes them slip into the countersunk holes smoothly without any binding. They fit perfectly, no wobble or stripped heads—just what I needed.