براغي رأس سداسي 3/8-16 × 3" | درجة 8 فولاذ مطلي بالزنك | ملولبة جزئيًا (400 قطعة/عبوة)

I was worried the partial threading would be an issue, but these bite perfectly in my press brake rebuild. The zinc coating looks clean and should handle the shop environment well.

I swapped out some old fasteners on a trailer hitch with these and the partial threading made installation way smoother. The hex heads hold up nicely under a wrench and the zinc coating looks clean.

Needed a bulk order of high-strength bolts for a heavy equipment repair and these Grade 8 hex heads with the partial thread worked perfectly with a socket drive. The zinc plating on all 400 pieces looks consistent and clean, no rust spots in the box.