Heavy Duty Spring Assembly for use in Shopblind Awnings and Aluminium and lightweight Steel Shutters.
The strength of the spring increases as the wire gauge number decreases. i.e. 6g is stronger than 8g
This product fits in ST40 4.0" Steel Tube available in sizes up to 8m.
Use HOP1082C40P 4.0" Compression Dummy Spindle at the opposite end of single sprung rollers.
For side fix brackets use HOP1038B-Z brackets