50 lbs, on the dot. There is nothing wrong with it. 6 between bolt down hole centers. I will include a few (very large) T-nuts that might fit your lathe (not shown). Srry I do not have the (2x) cap head saddle mounting bolts. The saddle slot keys are 2" x 1" ea. There are two on the bottom. 6" between centers of the t-nut bolt holes, The mounting surface is 7 3/4" x 5. All threads, functions, are perfect. The toolholder adjustment plates are present. It tightens up at any angle, very strong. Will be strapped to plywood inside the box for palleting. So it doesnt bang around inside the ...