W900-Pack is easy to install by simply attaching the casters to equipment using M8 Full Zinc Nuts and 1 3/16" Pan Head Screws by using the appropriate fasteners, enabling firm mounting and consistent alignment. Heavy-duty construction: The casters in the kit are made from steel and rubber for long-lasting durability. This makes them ideal for use in a variety of demanding environments, such as warehouses, factories, and hospitals. Wide range of applications: The W900 Caster Kit can be used on a wide range of equipment and applications, including road cases, racking enclosures, mobile workstations, furniture, trolleys, carts, machinery, and much more. High load capacity: The casters in the kit can withstand a high load capacity of up to 330lb per wheel, making them ideal for heavy-duty applications that require reliable mobility and versatile carrying capacity. Excellent grip and traction: The casters feature blue rubber wheels that provide excellent grip and traction on a variety of different surfaces. This makes them ideal for use in both indoor and outdoor environments. Complete package: The W900 Low-Cost 4" Swivel Caster Kit is a complete package that includes everything you need to add flexibility and maneuverability to a wide range of equipment and applications. Pack Includes: - 2 x W9006 Low-Cost 4" Swivel Caster with Blue Wheel - 2 x W9007 Low-Cost 4" Swivel Braked Casters with Blue Wheel - 16 x M8 FULL NUT ZINC - 16 x M8 Pan Head Screw 1 3/16" S1110 Our kits include two regular swivel casters and two braked swivel casters, ensuring optimal control and roll resistance. Features - Wheel diameter: 4" - Wheel width: 1.42" - Carrying weight per wheel: 330lb - Blue rubber wheel is non-marking and provides excellent grip and traction - Swivel plate allows for 360-degree rotation - Compatible with Caster Plate W0094