This set of four M6 2-inch casters, while designed for StarTech.com racks, can be added to the bottom of any server equipment rack, network rack, A/V rack, etc. with a 45mm x 75mm bolt pattern. Ideal for replacing damaged casters or upgrading a standing rack to a rolling rack for additional mobility. RKCASTER2 is backed by a lifetime warranty and free technical support.

StarTech.com Rack Compatibility Replacement Casters For: Optional Casters For*: 4POSTRACK12U RK1224WALHM 4POSTRACK25U RK1232WALHM RK1233BKM RK1520WALHM RK1833BKM RK2620WALHM RK2433BKM RK616WALM RK2537BKM RK9WALM RK4242BK24 RK4242BK30 *Optional casters are sold separately