Description Laserlite Twinwall H-snap Joiner 60mm wide overall. 25mm gap in the middle (allow 30mm when joining sheets, to allow for expansion). Works for both 6mm and 8mm thick sheets. Used to join the sheets together length-ways (joiner goes down the slope). Comes as a two piece joiner, the bottom piece gets fastened to the rafter and the top piece snaps in place over the sheets. Generally a button head screw (not included) around 30mm is suitable for fastening Delivery from $49
