Anyone know where I can order a thing that clips onto the end of some shock cord, sort of like the hooks where you put hook in place and then slide collar up which secures these little clamps. Only this thingamajig does not have a hook at the end but has, instead, an opening for a screw so that you can screw the end of the shock cord into a solid object (e.g, a sheer clamp in my case).

Thanks, Dave