Description

These are designed to cover the puck holes of the mounting rails for a fifth wheel towing system when it is not in use. They were made for a 2019 Chevy Silverado, but might work on other similar mounting rails. The central post is cammed to lock it into place. They work by slotting in and then rotating 90 degrees, pushing past the tension at about 45 degrees. Once installed they sit loosely, but won't rotate back past that tension point easily. I printed these with the 0.2mm structural preset out of PLA. Consider using a more UV resistant filament if you plan to keep these installed for a long period. Print with the large side to the print bed with supports enabled. I used tree supports but any should work fine. I recommend the gyroid infill to better handle the twisting force.