Did some searching, to no avail. Who sells the screw pin type shackles for attaching tow straps to a bumper? I have two points on the bent and twisted rear bumper. I think they are 13/16" holes. Checked harbor freight and northern tool, but both only have the shackle that bolts onto the bumper. I need the kind that opens with the screw pin at one end. Thanks for the help!