This shock mount is designed to be used for mounts on flat surfaces. The mount is designed to be welded into place, but with creating a 1/2 inch hole in the flat bottom it can just as easily be bolted in place. This design makes it useful for converting a stud-style mount to an eye-style mount. Mount accepts oe inch bolts and shocks with 1.5 inch wide eyes/bushings. Additional Details ------------------------------ Product description: This shock mount is designed to be used for mounts on flat surfaces. The mount is designed to be welded into place, but with creating a 1/2 inch hole in the flat bottom it can just as easily be bolted in place. This design makes it useful for converting a stud-style mount to an eye-style mount. Mount accepts oe inch bolts and shocks with 1.5 inch wide eyes/bushings.