Roofing Coupler-Pressed Steel Roofing coupler connects to a 0.7mm thick corrugated sheet with a pitch of 76.2mm. Maximum combined thickness of sheets that can be clamped is 3.0mm. Item: Roofing Coupler-Pressed Steel - £3.84 ex. VAT Quantity: £3.84 ex. VAT Add to Basket Trade prices available on request subject to volume, call 03300 573537