oller shutter garage door hanging strap to suit 77mm aluminium lath / curtain. 
 
Brand new item. 
Latest design. 
Very strong anti-burglar design. 
Stainless steel re-enforcement. 
Works with 77mm lath and 70mm octagonal tube. 
Locking mechanism that locates into the preformed holes in the tube. 
Screw holes provided for secondary fixing. 
Original equipment on many manufacturers shutters, Aluroll etc...
Can be used to replace "Selve" straps. 
Can be retrofit to most 77mm doors to upgrade the security. No further parts req.