Conduit Hanger; Type Conduit Hanger with Bolt Assembly; Installation Bolt with Hex Nut; Conduit Type 1/2 Inch EMT/Rigid; Material Heavy Gauge Steel; Finish Zinc Plated; Mounting Hole Size 1/4 Inch (Bolt/Screw); Standard Package 100 per Box; TPI 20; Head Type Round (Screw); Constructional Feature Corrosion Resistant