The Nsi RC50 Heavy Duty Rebar Ground Clamp With Adapter and Screw Grips On 1/2" Rebar For Heavy-Duty Wire Grounding In Harsh Outdoor Environments. The Lay-In Style Clamp Allows For Continuous Loop Wiring and Will Fit Conductors In The Range Of 8 Sol to 4 STR Additionally, The Stainless-Steel Hardware and Cast Silicon Bronze Clamp Body Are Made From Tough, High-Quality Metals That Provide Durable Performance In The Harshest Outdoor Environments. Ul Listed For Direct Burial, Use This Clamp to Ground Copper W