7/16-20 x 1-3/4" 六角頭螺栓 | 美國製造 | L9合金鋼 黃鋅鍍層 | 部分螺紋 (50/包)

The threading is clean and consistent on all fifty of these, so they seat properly without any cross-threading hassle. The yellow zinc finish feels durable enough for the industrial work I’m using them for, and the partially threaded design holds tension just right.

Much better than the cheap bolts I’ve used before – these seat perfectly in the socket and the partial threading makes alignment easy. Grade L9 feels rock solid.

I had to rebuild a piece of farm equipment, and these hex head screws were exactly what I needed—the hex heads gripped my socket perfectly without slipping. The yellow zinc coating looks quality too, no rust starting even after a few days in the damp barn.