Erico Caddy Universal beam clamp has steel construction and electro-galvanized finish. Beam clamp with 3/4-Inch jaw opening, has flange thickness of 13/16 Inch, bolt size of 3/8 Inch and rod size of 3/8 Inch. It withstands static top load capacity of 500 lb and static bottom load capacity of 250 lb. This reversible beam clamp is attachable to top or bottom flange. It accepts a wide variety of structural sections including C-purlins, angles, channels and beams. Beam clamp comes with locknut