these help to make the job ver neat, but I am hoping that they don't become brittle and crack because to replace them later would mean removing all the boards.
Great product allowing decking to be fixes without screw holes.
However one must be careful not to screw the fixing too tightly into sub frame, as the plastic breaks.
AB Fixings Clips for the Installation of AB Composite Decking
(as a rough guide you will need 5.5 fixings per 2.2m deck board)
Works as a Fixing and as a Spacer.