5/8-11 X 4-1/2" براغي رأس سداسية | صنع في الولايات المتحدة | فولاذ سبائكي PFC9 مطلي بالزنك الأصفر (25 / عبوة)

I used these to replace some worn bolts on an old press, and the PFC9 alloy steel feels noticeably tougher than the generic hardware I had before. The hex heads held up perfectly under a high-torque impact wrench without any stripping.

Installed these on a heavy-duty press fixture and the yellow zinc coating held up great against oil and shop dirt. The hex heads let me torque them down without slipping.

Threaded perfectly into my equipment mounts with no binding, the hex head gave my socket a solid grip. Counted all 25 bolts and the finish looks uniform, no flaking. Fast shipping too.