These metal cleats for gravel boards have two prongs that fit into preset holes in concrete mortised posts. The 2.885m x 150mm Concrete Gravel Board or a wooden 150mm gravel board is clamped in position with the bolt, and large washers supplied.
The longer 12"version is used when double gravel boards are to be fitted.
- For attaching 2.885m concrete gravel boards to concrete mortised posts
- They can also be used to attach 15cm wooden gravel boards to concrete mortised posts
- The 30cm version is for when a double gravel board is needed.
