براغي رأس سداسية 1/2-13 × 2 بوصة | درجة 8 فولاذ مطلي بالزنك | ملولبة جزئيًا (300 / عبوة)

The zinc plating looks clean and even across all 300, and the hex heads grabbed my socket wrench without any slipping. These grade 8 bolts feel rock-solid for the machine frame I'm rebuilding.

The partially threaded design made these screws grip perfectly when I was bolting a heavy bracket onto a steel frame. The zinc coating seems thick enough to resist rust, and the grade 8 steel feels solid under the wrench.

Pulled these out for a heavy machinery rebuild and the zinc plating on the heads is holding up nicely against shop grime. The partial threading made alignment a breeze when torquing them down with a socket.