Cotterman® WORKMASTER™ super duty rolling ladders, in steel and aluminum, are the most heavy duty ladders we make. With 1,000 pound load rating (500 for Aluminum), they need heavy duty casters. This set contains two (2) heavy duty 4X2 swivel casters with precision greaseless wheel, eight grade 5 bolts, nylon insert locknuts to mount to the front safelock system. For the rigid wheel set, see item SU2181.
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