Dual Purpose Clip. Fastening Clip for Threaded Rod. Thread Sizes M6/M8/M10, Conduit Max 20mm, Load Rating 22kg. Fastening Clip for Conduit. Girder Thickness from 3-5mm to 9-13mm, Conduit Thickness from 16-25mm, Load Rating 45kg. Material Finish – same – Zinc silver colored sacrificial coating (Z600+), waterproof topcoat, for use in indoor and outdoor humid and mildly corrosive environments. Coating is completely chromium free.