Hi everyone, I am hoping someone could help. I picked up a used Gamma Progression ST (the original one), and the tension head looks to be missing the adjustment screw ... and i'm trying to find the appropriate spec/size to order one online. https://gammasports.com/wp-content/uploads/2017/01/Prog_ST.pdf Page 10, step 3. Ideas? I took the tension head to a local faster place with tons of fasteners ... and after spending over 30 minutes trying to locate one...left empty handed. Help! Any help would be greatly appreciated.