3M Electrical Spring Connector 512G-BULK, Green, 14-10 AWG (Pack of 500) Connect wires reliably for grounding applications thanks to the safe, convenient design These connectors twist on for quick installation Depend on them for grounding applications in residential construction, commercial construction, industrial construction, marine and automotive uses, appliances and fixtures The uniform holding power of these connectors is excellent over the long term Appropriate for solid copper conductors in a range of 14 to 10 AWG