HOLO-KROME 86002 براغي رأس مقبس M3-0.5 × 6 مم | رأس زر محرك مقبس سداسي | سبيكة فولاذ أكسيد أسود حراري (100 / عبوة)

Black oxide coating is even across every head, so they don't look cheap in a finished assembly. Threads bit cleanly into my aluminum jig without any galling, and all 100 pieces were uniform. This pack will last me a good while.

Was hunting for a precise fastener for a jig I’m building, and these M3s fit the bill exactly—the 6mm length and button head made alignment a breeze. The thermal black oxide finish looks sharp and seems to resist fingerprints better than plain steel. Solid choice for precision work.

The black oxide finish on these M3 button heads looks great and seems durable, and the hex socket drive made installation a breeze with my Allen key. Used them to secure a jig on my drill press, and they held perfectly without stripping.