One common joinery method used in wood working is the mortise and tenon. A mortise is basically a hole in a piece of wood and the tenon is another piece of wood cut to tightly fit in that hole.

Jigs are available for the table saw to ensure ... Once set up, it can be made efficiently. Similar to a mortise-and-tenon joint, the bridle joint is cut to the full width of the tenon.

As [Richard Sewell] explains, a heat-staked joint is nothing more than the classic mortise-and-tenon made from plastic where the tenon stands proud of the joint face so it can be softened with heat.