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Ground Rod Coupling

&

Steel Drive Stud

RECR58M        7/8 outside diameter Copper Alloy No. 655 High Silicon Bronze, ASTM B98 H04 Hard Drawn Temper Ground Rod Coupling  5/8 - 11 UNC - 2B

TYPICAL SPECIFICATIONS FOR GROUND ROD COUPLING:

                        CHEMICAL TEST:

                                                                Si    %                                                 3.00

                                                                Mn    %                                                0.98

                                                                Zn    %                                                 0.025

                                                                Fe    %                                                 0.033

                                                                Pb    %                                                 0.014

                                                                Ni    %                                                  0.018

                                                                Cu    %                                                 Remainder

                        MECHANICAL TEST: 

                                                                Hardness (Rockwell B)                      94

                                                                Yield Strength (ksi)                            96,95

                                                                Tensile Strength (ksi)                         97,67

                                                                Elongation (%)                                   16 

REDS58        5/8 Drive Stud 5/8 - 11 X  1.5"  Grade 5

Both the Ground Rod Coupling and the Drive Stud meet and exceed US Government requirements for Grounding Assemblies  A-A-55804

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Revised: 11/17/2009.