HOLO-KROME 76128 براغي رأس مقبس M5-0.8 × 25 مم | محرك مقبس سداسي | فولاذ سبائكي أكسيد أسود حراري (100 / عبوة)

Torqued down half a dozen of these into my jig fixture and the hex socket drive grabbed cleanly without any stripping. The thermal black oxide finish is uniform and slick, which made them slide into pre-tapped holes way easier than the zinc-plated ones I've used before.

The black oxide coating on these screws seems really durable, and they threaded smoothly into my aluminum jig without any binding. I used half the pack already on a tooling fixture and every one seated perfectly with no chips or burrs.

The hex drive fits perfectly into my torque wrench without any stripping, and the black oxide finish looks clean against the aluminum tooling plate I'm using them on. Fastened down a new fixture for a 3D printer bed leveling jig, and every screw threaded in smoothly with zero binding.