OZ-Gedney Type GC Commodity Grade Pipe Ground Clamp, Conductor Size: 10 - 2 AWG, Length: 2-5/16 IN, Size: 1/2 - 1 IN, Casting: Copper Alloy, Screws: Steel, Finish: Screws: Zinc Electroplated, 2-1/2 IN Height, 11/16 IN Clamp, Third Party Certification: UL File Number E-24264, CSA 057250, Applicable Third Party Standards: UL 467, CSA C22.2 No.41, NEC Article 250-26(c), 250-112, 250-115, NEMA : FB-1, For Bare Wire