A joint for coupling a side arm to a frame of a pair of glasses. The joint includes a post, a plurality of prongs, and optionally a nut. The post is configured to be secured to one of the side arm or the frame and the plurality of prongs are configured to be secured to the other of the side arm or the frame. The post includes a shaft and an enlarged head at a distal end of the shaft. The plurality of prongs define a socket configured to receive at least a portion of the enlarged head of the post and apply a compressive force against the enlarged head of the post. The nut may be configured to generate a compressive force against the plurality of prongs. The compressive force may be adjusted by threading the nut along the length of the prongs. The nut may threadably engage a base that the prongs extend from and/or the prongs.