https://www.svideo.com/07858a.html
3ft SCSI-3 Ultra2 LVD/SE MD68 Male to Male Cable -Thumbscrew
scsilvd
https://www.fainimade.com/product/RC4-Tether-Lock-screw/65
Replacement thumbscrew for RC4 Tether Lock | FAINI MADE
1/4"-20 for your thumbscrew for our RC4 Tether Lock
replacementthumbscrewtetherlockfaini
https://manart-hirsch.com/product/nylon-1-4-20-thumbscrew-2/
Nylon 1/4" - 20 Thumbscrew - Manart-Hirsch
nylonthumbscrewmanarthirsch
https://hsuglobal.com/product/hsu-aluminum-alloy-thumbscrew-set-extension-and-wrench-for-gopro-hero-13-12-11-10-9-8-7-6-5-4-gopro-media-mod-akaso-campark-and-action-cameras-black/
HSU Aluminum Alloy Thumbscrew Set (Extension) and Wrench for Gopro Hero 13, 12, 11, 10, 9, 8, 7, 6,...
This grab bag of mounts for GoPro helps you have more mounting options. You could use these mounts as a resource for spare or replacement parts of your GoPro...