براغي رأس سداسية ثقيلة مقاس 3/4-10 × 4-1/2" | صناعة أمريكية | فولاذ درجة B A307 عادي | ملولبة جزئيًا (30/عبوة)

The partially threaded length on these is exactly right for clamping thick brackets without bottoming out, and the hex heads grabbed my socket wrench with zero rounding. Sixty bucks for a 30-pack of genuine A307 bolts feels like a solid deal.

These threaded cleanly into my steel frame jig without any binding, and the partial thread gave just the right grip for a heavy load. The zinc-free plain finish is exactly what I needed for a project that couldn't risk corrosion from a coating.

I needed some heavy-duty bolts for a piece of farm equipment, and these heavy hex heads have plenty of grip thanks to the 4-1/2-inch length. The plain finish is exactly what I was after for a clean, no-nonsense installation.