براغي رأس سداسية 3/8-16 × 1-3/4 بوصة | صناعة أمريكية | فولاذ سبائك PFC9 مطلي بالزنك الأصفر (100/عبوة)

The yellow zinc coating on these is consistent and clean across all 100 pieces, which made sorting them for assembly easy. They drove smoothly into pre-tapped holes without any binding, exactly what I needed for a few machinery repairs around the shop.

Threaded them into a heavy-duty press brake die mount, and the hex head gave my socket wrench a solid grip. The yellow zinc coating seems tough, no chips after torquing.

Used a few of these to repair a jig at work, and the hex heads grabbed perfectly with no rounding. The yellow zinc coating looks solid and should hold up fine in our shop environment.