Heavy Duty Spring Assembly for use in Shopblind Awnings and Aluminium and lightweight Steel Shutters.
The strength of the spring increases as the wire guage number decreases. i.e. 6g is stronger than 8g
This product fits in 3.5" Aluminium Tube available in sizes upto 6m.
Use 3.5" Compression Dummy Spindle at the opposite end of single sprung rollers.
For side fix brackets use HOP1038B brackets