Abstract: A device for connecting bricks which have apertures to receive the device is provided. A support shaft of the device supports resilient transverse fins which form an interference fit with the aligned apertures of two adjacent bricks. Stop surfaces on the support shaft engage the respective bricks to ensure penetration of both bricks. Flared ends of the device facilitate insertion and centering of the device within the apertures and provide protection for the fins. During insertion, the transverse fins are deflected inward toward the support shaft and longitudinally toward the stop surfaces. After insertion, the fins are biased outward by their resiliency into engagement with the bricks to lock the adjacent bricks together.