3/4-16 × 5-1/2" براغي رأس سداسي | صناعة أمريكية | سبيكة فولاذ PFC9 مطلي بالزنك الأصفر (20 / عبوة)

Threads are clean and the yellow zinc finish looks exactly like the spec sheet. These seated perfectly into my fixture plate holes without any binding, and the PFC9 alloy feels solid under torque.

I needed these for a heavy equipment repair, and the yellow zinc coating on the hex heads held up well against rust in my damp shop. The threads cut cleanly into the steel frame without any galling, which saved me a lot of time.

Finally found some long 3/4-16 bolts that didn't strip out when torqued to spec. The yellow zinc finish on these is uniform and thick, which gives me confidence they'll hold up against rust. These are going into a heavy-duty jig I'm building.