Once placed through the panel hole, installers can insert the cable tie through the mount on the panel's opposite surface. The second loop may also serve as a positioning device for a single bundle. Order Online Button Head Cable Tie 7.6 x 370mm Black in UK that is designed to fit pre-stamped oval hole sizes from 9x12 mm to 9x14 mm with zero insertion force. Kafton UK offers the best-in-class Button Head Cable Ties in UK.