Features

• Boxes with concentric or eccentric knockouts are suitable for bonding without any additional bonding means where used in circuits above or below 250 VAC
• Unless otherwise noted all concentric or eccentric knockouts are 1/2 to 3/4 in combinations
• Single and double gang metallic outlet and switch boxes are acceptable for use in two hour fire rated walls
• Groundskeeper raised ground feature on boss inside box provides one or two #10-32 tapped hole, allowing a 3/8 in long green ground screw to be threaded into box without contacting mounting surface
• Other boxes provided with flat ground tapped hole, except plenum boxes
• Two nail holes each end
• (1) 1/2 in bottom, (2) 1/2 in side, (4) 21/32 in end knockouts