DEXTER 3.5K 5/4.5 G HD K ONE PIECE, GALVANIZED GAL-DEX COATING, COMPATABLE WITH 3,500LB AXLES, 5 ON 4.5" BOLT PATTERN, 1/2" STUDS, CAPACITY OF 3,500LBS PER PAIR, COMES WITH BEARINGS, GREASE SEAL, EZ-LUBE STYLE GREASE CAP, WHEEL NUTS