Service Caster #20 Series 12mm threaded stem swivel casters with 4 inch hard rubber wheel and posi lock 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.
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 70-80 Shore D (+/- 5)