Slotted insulation brackets are used to fastening batten’s to the wall internally when installing a dual wall kit/insulation kit.
The battens will need to be at least as thick as the insulation being installed. (Ie. 40mm thick insulation, 40-45mm thick batten).
The slotted clips allow the external wall of your building to expand & contract naturally without the internal battens preventing this.
Never direct fasten battens to the wall of your log cabin.