For sale is a used set of 4 CASTER CONCEPTS L 1621 6 X 3 Locking Swivels w/ Brakes. Mounting holes measure 4.5 x 6 center to center. These are extreme heavy duty casters. Please indicate if you have a commercial address with dock or forklift and regular hours.The item "CASTER CONCEPTS L 1621 6 X 3 Locking Swivels with Brakes" is in sale since Thursday, December 7, 2017. This item is in the category "Business & Industrial\Material Handling\Casters & Wheels\Casters". The seller is "jhb0081" and is located in Williamsburg, Ohio. This item can be shipped to United States.