Springfield Marine Thread Lock Table Package - Rectangle. The Thread-Lock Post has an overall height of 27" and is composed of anodized aluminum. Features black plastic table mount and aluminum locking base which is designed as a surface mount. Features of Springfield Marine 1690107 Thread Lock Table Package - Rectangle Anodized aluminum locking post and base Plastic locking table mount Rectangular table top design Surface mounted Dimensions: 16" x 28" Package Contents: Springfield Marine 1690107 Thread Lock Table Package - Rectangle Springfield Marine 1690107: Thread Lock Table Package - Rectangle