براغي رأس سداسية M20-2.5 × 45 مم | فولاذ درجة 10.9 غير مطلي | ملولبة بالكامل (20 / عبوة)

The threads cut cleanly into the steel I was working with, and the Class 10.9 hardness held up perfectly under a heavy torque load. These 45mm screws are exactly the right length for my equipment jig.

These bolts tightened right up with no wobble in the bracket, and the 10.9 grade steel feels solid enough for heavy equipment. The full threading made it easy to get a secure bite even with a thick washer stack.

I was a little skeptical about the thread quality, but these M20 bolts threaded in perfectly smooth and the hex head gave my socket a solid, wobble-free grip during assembly.