Zero has long offered the ZFM traditional pattern surface mounted door loop in the standard length of 450mm. This product is used to transfer electricity from door frame to door leaf so that any electric hardware on the door can be powered. Following requests from customers for a longer version to work on thicker doors, doors on projecting hinges or doors opening to greater angles, we are pleased to add a 600mm version to the range. Both sizes are supplied complete with visible fixing machine and wood screws and supplied in silver finish as standard. Both patterns have been successfully fire tested to BS EN 1634-1: 2014 on steel doors up to 240 minutes integrity. Copy of report available upon request.