... , Hand carts, Trolleys, Apparatus, Furniture. 4" Steam Caster, Medium Duty Caster, Shopping cart caster, Institutional Cart caster, Hand carts & Trolleys caster, Apparatus casters, Furniture casters.- WheelMaterial ... - Bracket: Without Bracket- Threaded stem: M8x30mm- Load capacity: 40-60KGS 4" Steam Caster