... 4. 150mm width SLAT HANGER for roller shutter FA2021. Description:SLAT HANGER, SAFETY LOCK FOR ROLLER SHUTTER AND GARAGE DOOR. for 40mm octagonal, for 60mm octagonal, 70mm ocatagonal ... segment.2. 2, 3, 4, 5 segements are available3. Stainless steel spring, and copper color shaft bars,4. logo service available, OEM ... in one box, 250 pcs in one carton. slat hanger for roller shutter