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3M 312 and 512 Wire Nuts


3M 312 and 512 Wire Nuts

3M  312 and 512 Wire Nuts are ideal for use in regular or low-voltage systems, in construction, industrial maintenance or OEM applications. The quick-spin, wing-torque design of 312 and 512 electrical spring connectors is easy on your fingers. Generous expansion room accommodates a wide range of solid or stranded wire bundles.

  • For use with Copper Conductors ONLY.
  • 312 (yellow) connector for wire combinations from 3 #20 to 3 #12 copper AWG
  • 512 (red) connector for 2 #18 to 5 #12 300 volt copper AWG
Availability: Usually Ships Same Day

Part NumberDescriptionPrice
512RedEach: $11.17
312YellowEach: $9.90