I got my rear ladder mount for hi-lift jacks.
Really easy to install (i put in a few drops of vibra-tite before sealing it up.
The thread for the mount to the hi-lift is M8 course. I used a bolt, put some 1 1/4 inch rubber washers between the mount and the jack, a flat washer and a lock washer before i tightened it up. When the jack is attached its super solid. When its only one attachement point, it rotates a bit. But overall i'm very happy with the mount. Good purchase and i think its very robust.
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You can see here that i used too long screws. The hardware store was out of the size i wanted (35mm long) and i had to use M8 x 45mm.
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