براغي رأس سداسي 1-1/4-7 × 12 بوصة | صناعة أمريكية | فولاذ سبائك PFC9 مطلي بالزنك الأصفر (12/عبوة)

I've been using these cap screws for heavy machinery repairs, and the hex head gives a great grip even under high torque with a socket. The yellow zinc coating seems to add extra corrosion resistance compared to standard black bolts I've used before. Definitely solid for industrial work.

These bolts threaded in smoothly without any binding, and the yellow zinc finish looks factory-fresh. I’ve been using them for a heavy equipment repair and they’re holding up perfectly.

I needed a really long bolt for a heavy machine base and these 12-inch hex heads did the trick perfectly. The PFC9 alloy steel feels substantial and threads cut cleanly without any binding.