براغي رأس سداسية 3/4-10 × 2-1/2 بوصة، صناعة أمريكية، فولاذ سبائكي PFC9، زنك أصفر (20/عبوة)

Installed these yesterday on a new press fixture and the yellow zinc finish made them easy to identify among my other mixed fasteners. The hex heads held up well under full torque without any stripping.

The threads cut clean on my first pass, and the hex heads seated perfectly with a socket wrench on my press table. I’ve retightened them a few times now and the PFC9 alloy steel still feels solid, no wear on the drive yet.

The yellow zinc coating on these screws looks great and seems like it'll hold up well against rust. They drove in perfectly with my socket wrench for securing some heavy equipment brackets.