mount

I've found quite a few of woofers that have this foam-looking ring on the outside. How would one mount this to an enclosure cleanly (preferably without exposed screws)? Also, assuming that this is screwed attached on the inside of the enclosure, how would I round the baffle edges? Thanks

Hi, looking for a replacement cage to chassis fastener for my Shuguang I-12 tube amp. I have searched Pomona, Cinch, Keystone and Mueller offerings in hopes of finding an electrical connection banana plug that would suffice. The banana shaped fasteners actually wobble +/- 2 degrees and have the...