M12-1.75 x 40mm 六角頭螺絲 | 10.9 級鋼 普通 | 部分螺紋 (400 顆/包)

The threads cut clean and the hex heads seated perfectly in my socket wrench—no stripped corners on the first dozen I torqued down. For a full box of 400, these 10.9-grade bolts are a solid deal for shop stock.

I needed a batch of strong bolts for a heavy equipment repair, and these 10.9 grade screws handled the torque without any issue. The hex heads gripped the socket wrench perfectly, making installation quick. Good value for the pack size.

The hex head on these is deep and well-broached, so my socket bit grabs tight without slipping. I used a whole bag on a conveyor frame and every single one threaded in cleanly with no galling. Great value for a full 400-pack of class 10.9 hardware.