M22-2.5×70mm 六角頭螺絲 | 10.9級鋼未處理 | 部分螺紋 (60件/包)

Finally, a hex head screw that doesn’t strip under a socket drive—these M22s held tight during our assembly line setup. The 10.9 steel feels reassuringly solid, and the 70mm length was just right for our heavy bracket. Ordered the pack of 60 and they all matched perfectly.

The partially threaded design made alignment a breeze on our press frame, and the hex heads seated cleanly with a standard socket. These 10.9s handled the load without a hint of flex, and 60 pieces is plenty for a full rebuild.

Had to torque these down to 120 ft-lbs on a large assembly jig, and the hex head held perfectly without any rounding. Thread engagement felt solid the whole way in, and the partial thread gave just the right grip depth.