J Hook for powder actuated installation on walls. One 5/32 Inch (M4) mounting hole and one 1/4 Inch (M6) mounting hole for user supplied fasteners, 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.