2"-4-1/2 x 15" 六角頭螺絲 | BD級合金鋼無鍍層 | 部分螺紋 (1入/包)

Needed a heavy-duty bolt for a press repair and these 15-inch Grade BD screws handled the torque without any flex. The hex head made it easy to drive with my socket wrench even in a tight spot. Solid piece of hardware for the price.

The partial threads on these cap screws made alignment a lot easier when I was securing a heavy equipment bracket—no fighting to get the threads started. The hex head grabbed cleanly with my socket wrench, and the alloy steel feels stout enough to trust under torque. Exactly what I needed for a 15-i

These bolts held perfectly when I reassembled my press brake; the hex head gave my socket wrench a solid, no-slip grip. I've bought cheaper fasteners before that stripped out, but these Grade BD alloy steel ones feel much more durable. Very happy with how quickly the partially threaded section start