For Macro Mondays theme "fasteners", these are joining biscuits. They are used by woodworkers to join two planks of wood side by side, such as to form a table top. Slots are cut in the edges of the planks with a special tool, glue is applied to the edges and in the slots, the biscuits are inserted, and the planks are then pushed together (and held by clamps until the glue dries. The joining power is increased because the biscuits expand as the absorb liquid (normally water) from the glue.
Tagged: , biscuits , Macro Mondays , fasteners , wood joinery