The SP2-4/0-Q Service Post Grounding Lug Is Designed For Grounding Two Copper Code Conductors to Steel Structures, Busbars, Transformers. The True Hex Design For Body and Nut Hex Provides Correct Fit With Socket, Box, or Open-End Wrenches, Resulting In Proper Torquing Of Electrical Connection. The Pressure Bar Provides A Secure Connection On A Full Range Of Conductor Combinations Used With Each Lug Providing A Premium Wire Pull-Out Strength. Ul Listed For Grounding and Bonding.