M42-4.5 X 140mm 外六角螺絲 | 10.9級鋼本色 | 部分螺紋 (1個/包)

I've been using these M42 bolts for industrial shelving, and the 10.9 grade steel really holds up under heavy loads. The partially threaded design made alignment easier than I expected.

Needed a heavy-duty bolt for a piece of farm equipment, and these M42s fit perfectly with the hex head giving great socket grip. The partial threading made installation a breeze since I didn't need threads all the way down. Solid feel to the steel, exactly what the job called for.

Used these to secure an industrial press base to a concrete floor, and the 140mm length gave plenty of bite through the plate. The hex head took a socket without slipping, even torqued to spec.