Drawbore pins

The hole in the tenon is drilled a millimetre or two closer to the shoulder than the hole in the mortise. Driving a tapered pin pulls the shoulders tight and locks the joint.
Measured sketches of traditional woodworking joints.

The hole in the tenon is drilled a millimetre or two closer to the shoulder than the hole in the mortise. Driving a tapered pin pulls the shoulders tight and locks the joint.