The Pipe Thread Stem Adaptor is a metal component designed to fit onto a 7/16โ grip ring stem caster, allowing it to screw into a 3/4โ NPT (National Pipe Thread) pipe with a 1โ length. It acts as a bridge between the casterโs grip ring stem and a pipe fitting, enabling secure attachment in applications where a pipe connection is needed, such as in institutional or industrial setups with pipe-based structures.