Item Photo: No. 1 in the diagram. Kit Includes Item Nos.: 2 • Plain Washer (1/4") (4) 3 • Cap Screw (1/4-20 x 1-1/4") (4) 4 • Set Screw (3/8-16 x .75" Hex Socket) (4) 5 • Bottom Plate (1) 6 • Screw (#8-32 Pan Head) (2) 7 • Screw (#10-24 x 3/8" Pan Head) (2) 8 • Tubing Extrusion (1) 9 • Set Screw (Nylon-tipped) (2)