Engineered for specialized equipment, institutional carts, and custom tubular frames, our 71-100 kg (156-220 lbs) bolt hole casters provide a secure through-bolt fastening solution. Featuring a robust hollow kingpin design that resists deformation under heavier loads, they allow custom-length bolt installation for thick bases. Built strictly in sizes of 2 inches and above with non-marking, smooth-rolling treads, they deliver reliable obstacle clearance and stable locking options. Can’t find what you need? Contact us for guidance.