Service Caster #20 Series 3/4 inch threaded stem swivel casters with 4 inch solid blue polyurethane wheel and posi lock. Featuring a zinc plated finish, these casters are ideal for light and medium duty material handling, carts, equipment, and shop projects.
The polyurethane wheel performs well on most surfaces, and excels on hard surfaces like concrete, tile, and wood. They will not mark or mar floor surfaces.
Wheel dimension: 4" x 1-1/4"
Threaded stem: 3/4" dia. 10TPI x 2-1/2" long.
Mounting height: 5-1/8"
Attachment: Screw in or use nut to secure
300 pound capacity per caster