Hardware EJOT Fastening Systems Precision Drill Bit HSS-5.5x175, 9250408000 Mfr. Part # 9250408000 Diameter 5.5 mm
Lag & Hanger Bolts Unirac 5/16"x4.5 Lag Bolt & Structural Screw SS , 030045C Mfr. Part # 030045C Diameter 5/16 In. Size 5/16 x 4-1/2 In.