5/8-18 X 1-3/4" 육각 머리 볼트 | 미국 제조 | PFC9 합금강 황색 아연 도금 (25개/팩)

The yellow zinc coating on these bolts is holding up perfectly in my damp shop environment, no rust after several weeks. They thread cleanly into tapped holes without binding, and the hex heads let me torque them down solidly with a standard socket. Exactly what I needed for a sturdy frame assembly.

I’ve been using these for heavy equipment assembly and the hex head gives a snug fit with a socket wrench every time. The threads are clean and consistent, no binding at all. Solid quality for industrial work.

The yellow zinc coating on these bolts looks really well done, and the threads were clean with no burs. I used them to fasten a heavy bracket and they seated perfectly with a socket.