$9
Listing is for 1 (one) Bolt on field installable swivel lock for Service Caster Series 30 casters or for most caster forks that feature a 4” x 4.5” top plate and lock notches on the swivel raceway. Lock caster movement at 90 degree angles with easy to use pull ring. Can be used on any caster forks with 4" x 4.5" top plate and lock notches on swivel. Swivel Lock for Service Caster Series 30, fits most brands with 4" by 4-1/2" notched swivel top plate. Field installable. Easy to use pull ring. Bolt or weld on.