HOLO-KROME 76068 براغي رأس أسطوانية M4-0.7 × 15 مم | محرك سداسي | فولاذ سبائكي بأكسيد أسود حراري (100 / عبوة)

The black oxide finish on these screws is really consistent across the whole pack, and they seated perfectly into my precision fixture with no thread binding.

Bought these for a fixture rebuild and the black oxide finish is exactly what I needed for corrosion resistance in a humid shop. The hex socket drive engages cleanly with no stripping on the first few threads, and the 15mm length was spot on for my 10mm plate stack. Packaging kept all 100 organized,

I was pleasantly surprised by how consistent the thread cutting is on these M4 screws—every single one threaded smoothly into my jig without any binding. The black oxide finish also feels more durable than cheaper alternatives I’ve used before.