100mm Nylon Castor Swivel Bolt Hole 100kg Stainless Steel Glass Filled Nylon The castor frame is a Bearing Options:20mm Sealed Bearing The castor frame is a steel swivel plate fitting with a double ball bearing in the head race Code: LKI100 F Load per Castor: 350kg Wheel Diameter: 100mm Wheel Width: 35mm Bearing Type: Plain Bore Wheel Material: Cast Iron Overall Height : 130mm Swivel Radius: mm Offset: mm Plate Size: 100 x 85mm Bolt Hole Spacing: 80 x 80mm Bolt Hole Size: 9mm food production applications and catering equipment The bolt hole internal diameter is 13mm designed for mounting to your application with a M12 or 1 2" (1 2 inch) bolt