Designed specifically for scaffolding systems, Richmond’s Scaffold Castor is tested and approved to AS1576.2 2009 Appendix H. The advanced design which eliminates the kingpin features a zinc passivated steel frame for rigidity and a long working life. Colour coded brake pedals clearly identify the on/off operation to the user.Richmond’s range of scaffold/platform castors are compatible with Kwik Stage Steel Scaffolding and mobile Aluminium Scaffolding/Platform products. The S879B Adjustable Thread Type Scaffold Castor uses the Hollow Nut fixing method suitable for KWIK stage steel scaffold leg: 48.3mm OD x 4.0mm wall thickness = 40.3NB, mobile aluminium scaffold leg 48.4mm OD x 4.47mm wall thickness = 39.46NBRichmond adjustable scaffold castor is designed to accommodate a variety of scaffold tube including mild steel or aluminium with an outer diameter of 48.3mm and internal diameter of 39.46mm.Wheel Diameter (mm) 200Wheel Width (mm) 50Wheel Type Polyurethane Tyred Cast Iron CentredWheel Code PU8079Wheel Bearing Type Roller BearingHeight Adjustment (mm) 310-450Maximum Load Capacity (kg) 700