A corrugated fastener is a thin strip of sheet metal that has a pattern of alternating grooves. While they are relatively thin, the grooved shape of the corrugated fastener gives it a surprisingly high level of strength and durability.
These fasteners are a common alternative to traditional nails, screws and dowels when it comes to joining woods. Corrugated fasteners are used for both finish carpentry, like rough carpentry and tables and furnishings, including components that are hidden from view.
Note: Before you buy always check the minimum and maximum length of the fasteners that fit in your tool (mentioned in the tool owner's manual)