مسامير آلية سداسية مقاس 3/8-16 × 4 بوصات | فولاذ مطلي بالزنك | خيط جزئي (50/عبوة)

The partially threaded shank was a lifesaver—the unthreaded grip section really bites into the material instead of just spinning loose. All 50 bolts came out of the box uniform and clean, no bent threads or gunk.

The zinc plating on these bolts is a nice touch, giving them a clean, corrosion-resistant finish. I needed a partially threaded 3/8-16 for a tight spot in my trailer hitch, and the unthreaded grip section worked perfectly. They drove in smoothly with a standard wrench and feel solid.

The unthreaded grip section on these bolts made aligning the bracket much easier than with fully threaded ones. They fit perfectly in my 3/8" holes and the zinc coating looks clean and should resist rust well.