براغي رأس سداسي 3/8-16 × 4-1/2 بوصة | صناعة أمريكية | فولاذ سبائكي PFC9 زنك أصفر (50 / عبوة)

Needed some heavy-duty bolts for a press fixture at work and these 3/8-16s fit perfectly with the hex head letting me torque them down tight with a socket. The yellow zinc coating looks good and should hold up fine in the shop environment.

Used these to rebuild a trailer hitch mount and the threads were clean and consistent on every single bolt. The hex heads held up to the impact driver without stripping.

The yellow zinc finish held up perfectly through a greasy weekend of machinery work, and every one of the 50 threads seated cleanly without a single burr. These PFC9 alloy steel bolts are the real deal for heavy assembly.