5" x 2" | Swivel Caster Set of 4 | Phenolic Wheel | 3,200 Lbs Capacity Our Medium Duty 'HD' Series is one of the most recognized and commonly used casters in a broad spectrum of industries and is one of the most popular selling caster series; offering exceptional quality, functionality, value and availability. We offer fast delivery and competitive prices. This series is made of 1/4" thick cold rolled steel; designed, formed, and welded for optimal mobility and made to withstand the rigors and abuse typically seen in Medium duty applications. Double Ball raceways and a 5/8" nut & king-pin are standard features; however we also offer a rivet kingpin version & a kingpinless version. Poupular applications may include; various carts, trucks, dollies, racks & equipment, for almost every industry including industrial, warehousing, hospitality, institutional, food service, food processing, retail display, and countless other medium duty applications. Features OEM PREFERRED SERIES MAJORITY OF THIS SERIES & WHEELS ARE NSF LISTED RoHS COMPLIANT DOUBLE BALL RACEWAY WITH 5/8� KINGBOLT MATCHING TOTAL LOCK CASTERS AVAIALBLE GREASE FITTING IN RACEWAY & AXLE FOR MAINTENANCE ZINC PLATED / RUST & CORROSION RESISTANT PHENOLIC WHEEL IS STRONG AS STEEL NON-MARKING WHEEL HIGHLY RESISTANT TO CHEMICALS