براغي رأس مقبس M5-0.8 × 20 مم | رأس مسطح محرك سداسي | ملولبة بالكامل | فولاذ سبائك فئة 12.9 مطلي بالزنك (400/عبوة)

I've been through half the box rebuilding a jig for my mill and every single screw threaded in smooth without binding, even the last few. The 12.9 alloy steel feels seriously tough for the price, and the flat heads sit flush like they're supposed to. These are going to be my go-to for precision work

The flat hex head sits flush perfectly on my jig, and the 12.9 alloy steel feels noticeably harder than standard bolts. I've already used half the pack for tooling fixtures without a single stripped thread.

These M5 bolts threaded perfectly into my jig’s tapped holes without any binding, and the hex socket drive made tightening them a breeze. For the price, getting 400 pieces of Class 12.9 strength is a solid deal.