Set of 4 (four) Service Caster #20 Series casters, 2 swivel and 2 swivel with top lock brake fitted with 3.5 inch by 1-1/4 inch gray polyurethane tread wheel. 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.
Top plate size: 2-1/2" x 3-5/8" with ball bearing swivel
Bolt hole pattern: 1-3/4" x 2-7/8" to 3"
Bolt size: 5/16" (hardware not included)
Mounting Height: 4-5/8"
170 pound capacity per caster
Tread hardness: 70 +/- 5 Shore (A) Durometer