براغي رأس سداسي ثقيلة 7/8-9 × 3-1/2" | صناعة أمريكية | فولاذ A307 درجة B مطلي بالزنك | خيط جزئي (50 / عبوة)

The partially threaded length saved me from having to add washers on a heavy equipment repair. The zinc coating looks consistent across all 50 pieces, which is a nice touch for the price.

These hex bolts held up perfectly when I used them to mount a heavy motor on a piece of industrial equipment. The zinc plating resisted scuffing during tightening, and the partial threading made alignment a breeze.

The threads cut cleanly into the steel beam without any binding, and the zinc coating looks uniform across all fifty bolts. I've already torqued a dozen into place for a custom trailer hitch, and they're holding firm without any play.