M30-3.5 X 360mm 六角頭螺絲 | 10.9級鋼樸素 | 部分螺紋 (1 / 包)

The partially threaded design made alignment much easier when I was bolting a large jig to the shop floor. These M30 screws handled the torque without any issue, and the hex head fit my socket perfectly.

Got these for a heavy-duty press frame rebuild and the partial threading made alignment way easier. The hex head seated perfectly in my impact socket without any wobble.

Used these on a large assembly jig and the class 10.9 steel held up perfectly under heavy torque. The hex head made it easy to drive with a socket, and the partial threading was exactly what we needed for alignment.