براغي رأس سداسية 7/16-20 × 3-1/2 بوصة | صناعة أمريكية | درجة L9 من سبائك الفولاصفراء مغلفة بالزنك | ملولبة جزئياً (25/علبة)

I needed a high-strength bolt for a heavy equipment repair, and the Grade L9 steel on these handled the torque beautifully with no stripping. The partially threaded design let me get a deep enough grip without wasting shank length.

These threads cut cleanly without any binding, and the yellow zinc coating looks professional on my shop equipment. The 3-1/2" length was perfect for bolting through a thick steel plate.

Used them to fasten a heavy bracket to a steel beam—the partially threaded design made alignment a breeze. The yellow zinc coating looks solid and the hex head grabbed my socket perfectly.