Related Clues:

• Joint part
• Mortise connection
• Mortise's mate
• Mortise go-with
• Mortise insertion
• Half of a joint
• Board projection
• Mortise-joint component
• Beam joiner
• Part of a dovetail joint
• It fits into a mortise
• Carpentry joint
• Carpentry joint component, perhaps
• Mortise's counterpart
• Part of a woodworking joint