براغي رأس سداسي 1/2-13 × 7-1/2 بوصة | فولاذ درجة 5 مطلي بالزنك الأصفر | ملولبة جزئياً (20 / عبوة)

Used these to mount a heavy-duty pump to its base, and the threads were clean right out of the box. The yellow zinc coating looks good and seems like it’ll resist rust well in a shop environment.

I needed 1/2-13 bolts for a conveyor repair and these partially threaded screws grabbed perfectly with a socket wrench. The yellow zinc coating on the grade 5 steel looks solid and should hold up well in a dusty shop environment.

The hex head on these cap screws fit my socket perfectly, and the yellow zinc coating looks clean and durable. Installed them on a press jig and they torqued down without any stripping. Great value for a 20-pack of Grade 5 hardware.