براغي رأس سداسية M20-1.5 × 120مم | فولاذ فئة 10.9 غير مطلي | ملولبة جزئياً (25 / عبوة)

Used these to mount a heavy steel bracket on my lathe, and the Class 10.9 strength handled the torque without any stretch. The partial threading made alignment easier than I expected with a full-thread bolt.

These bolts are perfectly straight and the 10.9 grade holds torque better than the 8.8s I used before. They threaded cleanly into my mill’s base without any binding or wobble.

The partially threaded design made seating them in my jig plate a breeze, and the hex heads grabbed the socket cleanly with zero rounding. I've torqued them down hard and the 10.9 steel hasn't shown a hint of stretching.