براغي قبعة رأس سداسية 3/8-16 × 1-5/8 بوصة | صناعة أمريكية | فولاذ درجة 8 زنك أصفر | ملولبة جزئيًا (100 / عبوة)

Finally found some partially threaded bolts that actually fit tight without having to force them. The yellow zinc coating has held up well during assembly, and these grade 8s are definitely solid for heavy equipment use.

Needed some high-strength bolts for a trailer hitch repair, and these Grade 8s with the yellow zinc finish slipped right into place with a socket. The partially threaded shank gave just enough grip without bottoming out.

Had to torque these down pretty hard on a press jig and the hex head held perfectly without stripping. The yellow zinc coating still looks clean after a couple dusty jobs.