Morris Products 91652 Ground Lay in Clamp, Copper, 1/2 - 1" Pipe Range, 3/8 - 1" Rebar Range, 8 - 8 SOL Splicing Wire Range Top Entry Lay-In Pipe/Rebar Ground Clamp - Our Top Entry Lay-In Copper Ground Clamp is suitable for Direct Burial in Earth or Concrete Used to Connect Grounding Conductors Parallel to Water Pipes, Ground Rods, Copper Water Tubing or Rebar Lay-In Ground Conductor at Top of Conector Parallel to Pipe/Rebar for easy wire insertion Cast of High Strength Copper Alloy containing 80% or more Copper Supplied with Copper or Stainless Steel Screws