HOLO-KROME 87021 براغي رأس مقبس M3-0.5 × 25 مم | رأس مسطحة محرك مقبس سداسي | فولاذ سبائكي مؤكسد أسود حراريًا (100 / عبوة)

Used a full row of these on a jig fixture yesterday, and the flat heads seated flush without any cam-out issues. The thermal black oxide held up fine against the steel shavings, and the threading was clean on every single one. For 100 pieces at this price, they’re a solid buy if you do precision ass

The black oxide finish on these M3 screws is really consistent across the whole pack, which made my jig assembly feel much more precise. They drive in smoothly with a hex key and hold tight without stripping.

I've been swapping out the cheap screws on my jigs and fixtures for these and it's made a world of difference. The 25mm length is perfect for the through-holes I'm using, and the flat head sits flush without any wobble. You get a full 100 in the pack, so I've got plenty to stock up for future projec