SPACER FOR 20mm Conduit pipe Zn Plated with 3/26WW threaded mounting holes for saddle with 9.5mm diameter mounting hole for counter sunk screws. Spacer is 25mm wide x 12mm thick and can mount 20mm Full or Half Saddle. Hole can be tapped to M10 and threaded rod can be used to hang from purlins using a 10mm Purlin Clamp "PC10" Box Qty 50