4 Inch Polyurethane Wheel with ¾ Inch NPT Pipe Thread Stem Swivel Caster Set 4

These Service Caster Series #20 swivel pipe threaded stem casters feature 4” diameter wheels and a 5-1/8” mounting height. Weight Capacity: 3" and 3.5": 300 lbs Capacity/Caster; 4", 5", and 6": 350 lbs Capacity/Caster Pipe Threaded Stem: 3/4" NPT (3/4"-14 x 5/8") – Approximately 1-1/16” in diameter – Fits standard 3/4" pipe coupling – The pipe threaded stem screws directly into a standard pipe coupling for a rigid and permanent fit with full swivel action. Ideal for racks, shelving, equipment, and shop projects.