J Hook with hammer-on beam clamp for use with flanges 5/16 Inch - 1/2 Inch (7.9mm - 12.7mm) thick, Rotates 360 degrees, Black, Complete horizontal and vertical 1 Inch bend radius control helps prevent degradation of cable performance, UL 2043 and CAN/ULC S102.2 listed and are suitable for use in air handling spaces, Durable non-metallic J Hook materials provide the ability to manage and support a large number of cables, Pre-riveted assemblies allow for attachment to ceilings, beams, threaded rods, drop wires and under floor supports to meet requirements of a variety of applications, Wide cable support base prevents pinch points that could cause damage to cables, Cable tie channel allows user to easily install 3/4 Inch Tak-Ty Cable Ties to retain cable bundle.