1-3/4-5 X 5-1/2" 六角頭螺絲 | 等級BD合金鋼無鍍層 | 部分螺紋 (1顆/包)

The Grade BD alloy steel feels properly tough, and the hex head grabbed my socket wrench with zero rounding. Threaded section was just right for cinching down a heavy bracket, no fuss at all.

The Grade BD alloy steel feels seriously tough, and the partial threading is perfect for clamping down on a fixture without chewing up the threads. My socket grabbed the hex head cleanly, no rounding out, even under a solid amount of torque. Exactly what I needed for the job.

I needed a partially threaded bolt for a machine frame repair and these fit the bill perfectly. The hex head grabbed my socket wrench cleanly and the Grade BD alloy steel feels seriously solid for heavy-duty work.