Service Caster #20 Series swivel casters with 12mm threaded stem and 4 inch polyurethane wheel are a versatile caster choice. Featuring a zinc plated finish, these casters are ideal for light and medium duty material handling, carts, equipment, and shop projects.

Wheels roll smoothly with integrated ball bearing design. 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: 12mm dia. 1.75mm pitch x 1-1/2" long. Includes nut and lock washer.
Mounting height: 5-1/8"
Attachment: Screw in or use nut to secure
350 pound capacity per caster
Wheel tread hardness: Durometer Shore 55D (+/- 5)