Connects 14 to 6 AWG solid copper conductor to metal frames where continuity of grounding can be assured7/16 in silicon bronze hex head bolt installs with carn wrench, socket of Grescent HenchTin plated square-head bolt enables installation with pliers when tighter ground connection is neededGround wire hole access from four directions minimizes need to bend ground wireDesigned so ground wire may be installed on clamp prior to mounting clamp on metal frame, reducing installation timeBeam and ground wire connection can be tightened separately with disconnecting integrity of ground circuitHigh strength copper alloy (91% nom.) provides greater conductivity, durability and corrosion resistance without the need for platingHigh strength anchoring bolt penetrates paint or metal oxide