The TRED Threaded Mounting Pins are designed to easily and securely mount your recovery boards to your vehicle, trailer or caravan. The unique design will mount up to four TRED GT, HD or Pro model recover boards or two of the TRED 800/1100 model recovery boards while allowing the option of a padlock for added security. These pins will also work on other branded recovery boards** With the M6 threaded base design, you are able to secure these pins easily onto a variety of surfaces. Depending on your installation, mounting location, and brackets used you might require four Pins for optimum security and stability. For vertical, side or anything other than flat mounting, we highly recommend using two sets of Mounting Pins When paired with a TRED Mounting Baseplate* (SKU: TMBP01*), the installation is more secure and easier to mount due to the pin location slots, recesses and covers within the Baseplate design.