براغي رأس سداسي 3/8-16 X 4" | صناعة أمريكية | درجة L9 من سبائك الصلب مطلي بالزنك الأصفر | خيط جزئي (50 / عبوة)

I needed some heavy-duty fasteners for a trailer repair, and these grade L9 bolts didn't strip or snap under my impact wrench. The partial threading made aligning the first few threads way easier than with fully threaded ones.

These threads cut clean and the zinc finish looks uniform across all fifty. They seated perfectly in my shop press jig without any galling, and the partial threads gave me solid clamping force where I needed it.

I'm using a set on a heavy-duty trailer hitch build, and the fact that these are partially threaded really helps with alignment and clamping force. The yellow zinc finish on these L9s looks tough and shiny right out of the pack.