Service Caster #20 Series 3/4 inch expanding adapter stem swivel casters with a 3-1/2 inch thermoplastic rubber tread wheel and posi lock. Featuring a zinc plated finish, these casters are ideal for light and medium duty material handling, carts, shop projects, and any equipment with round or square tube legs.
Wheels roll smoothly with integrated ball bearing design. The thermoplastic rubber wheel performs well on most surfaces. They will not mark or mar floor surfaces.
Mounting Height: 4-5/8"
Expanding Adapter Size (Inside Diameter): 3/4"
Wheel Size: 3-1/2" x 1-1/4"
250 pound capacity per caster