5/8-11 X 2-1/4" 六角機械螺栓 | 鋼鍍鋅 | 部分螺紋 (100 / 包)

The partially threaded shank gave me a solid grip length for my trailer hitch mount, so the load sits tight without any slop. Zinc plating looks uniform, no flaking after a few days of rain.

I’ve just finished tightening these bolts on a heavy equipment mount, and the hex head gave me a solid grip with a wrench. The zinc plating looks clean and should hold up against rust in my garage.

The partial threading is perfect for my trailer hitch build—the smooth shank gives me a solid grip before the threads engage. They cinched down evenly with a torque wrench, no wobble.