Non Brand Extend-Stem Threaded Stem Caster for Ladder

Extended-stem threaded stem casters for ladders each have an extra-long threaded stem with a spring-loaded assembly. The threaded stem screws into a bracket on mobile ladders, platforms, and similar equipment used in warehouses, stockrooms, loading docks, and similar environments. When a load is applied to the equipment, the spring-loaded assembly contracts and lowers the equipment to the ground to keep it stationary during use. When there is no load on the equipment, the spring-loaded assembly expands to raise the equipment off the ground so the casters can roll. These casters have zinc-plated steel frames and double ball swivel bearings that allow the caster to swivel smoothly.