HOLO-KROME 76340 M10-1.5 X 75mm 內六角螺絲 | 六角驅動 | 合金鋼熱處理黑色氧化 (50 / 包)

The black oxide finish on these M10s is flawless—no burrs or coating flakes out of the box, and they torqued down cleanly into my fixture plates. A full 50-pack for this price makes it easy to keep spares on hand for tooling builds.

Pulled these out for a heavy-duty jig setup and they threaded cleanly into tapped holes without any binding. The black oxide finish seems consistent across all 50 pieces, which gives me confidence they'll hold up in use.

I’ve used these for fixture plates and jigs, and the hex socket drive makes them easy to torque in tight spots. All 50 arrived with a consistent black oxide finish and clean threads.