براغي رأس سداسي M20-2.5 × 90 مم | فولاذ عادي فئة 10.9 | ملولبة جزئياً (20/عبوة)

The hex heads grabbed my 21mm socket cleanly and torqued down to spec without any stripping, exactly what I needed for a heavy equipment jig. Class 10.9 steel feels solid for the price, and the partial threading made alignment on the assembly way less fiddly than I braced for.

The packaging was sturdy and the threads looked clean right out of the box, which saved me prep time. They’re class 10.9 so I’m confident torquing them to spec on my jig, though the plain finish means I’ll need a bit of anti-seize next time.

Installed these on a heavy-duty press frame and the 90mm length was just right for the flanges I was bolting together. The partially threaded design saved me from having to stack washers to get proper clamp force.