EMT/IMC/PIPE/RIGID CONDUIT TO STRUT TYPE; ASTM A1011/A653/B633 16 GAUGE LOW CARBON STEEL MATERIAL; ZINC ELECTROPLATED FINISH; 0.557 TO 0.706 INCH OUTER DIAMETER; 400 LB (VERTICAL), 50 LB (LONGITUDINAL/TRANSVERSE) LOAD RATING; 3/8 INCH TRADE SIZE