Service Caster #20 Series pipe thread swivel casters with hard rubber wheel. Featuring a zinc plated finish, these casters are ideal for racks, shelving, equipment, and shop projects.
Wheel size: 4" x 1-1/4"
Wheel hardness: 70-80 Shore D Durometer
Threaded stem: 3/4" NPT, Pipe Thread Stem
Mounting height: 5-1/8"
300 pound capacity per caster