Kingpinless casters mount directly onto the item they transport (typically utility carts, towlines, platform trucks, etc.) with four screws, rather than with a bolt/kingpin assembly. This better enables the caster to handle impact and shock, resulting in a smoother ride and a longer lifetime of service. Select from many features, including swivel casters or rigid casters, wheel shape, wheel diameter, inside bolt hole spacing, caster brake or no brake, material of caster wheel or tread, load rating and capacity, and other considerations. For more on casters, see our stem ladder casters, and caster accessories.