براغي رأس سداسية M16-2 × 150 مم | فولاذ درجة 8.8 مطلي بالزنك | ملولبة جزئيًا (25 / عبوة)

Threads cut clean and the partial thread made seating them in the flange much easier than fighting a fully threaded bolt. I've used a lot of 8.8 hardware and these feel properly hardened, no galling on the zinc either.

The zinc plating looks even and hasn’t chipped after a week of heavy torqueing, and the partial threading made alignment much easier. Bolted a motor mount with a standard socket and they seated perfectly every time.

These M16 bolts threaded smoothly into my trailer hitch mount without any binding. The zinc coating looks even and should hold up well against occasional moisture.