HOLO-KROME 87048 براغي مقبس M4-0.7 × 30 مم | رأس مسطح محرك مقبس سداسي | فولاذ سبائكي مؤكسد أسود حراريًا (100/عبوة)

Hard to beat for the price, and the 30mm length was perfect for my jig build. The hex socket drive seats cleanly, though a few of the heads showed slight scuffing from the batch.

The black oxide finish seems to hold up well on these screws, and the socket drive made installation much easier than with a standard hex key. I used them to secure a jig on my drill press, and they fit perfectly. The only minor issue is that a few screws had a tiny bit of burr on the threads, but n

The flat head on these M4 screws sits flush nicely in my jig, and the black oxide finish seems durable. Took a while to find this exact 30mm length for a tooling project. A solid buy for precision work.