Knob for Screw WS 10 to 14

thingiverse

Knobs designed specifically for screws that require a wrench size between 10 and 14mm fit perfectly snugly. To prevent the bolt from loosening, a depot is built in to be filled with resin or JBweld. The depot features a molded ring that enhances the grip of the resin against pulling forces. For added strength, printing with a high infill percentage can be used; I achieved maximum strength by printing ABS at 80% infill and taking my time.