MMM05400708160 MFG #: 312-BAG
$0.09 / Each
500 Currently In Stock
  • Brand Name: 3M
  • Color: Yellow
  • Conductor Range: 22 - 8 AWG
  • Offerings: Products
3M™ MMM05400708160 spring connectors are designed for speed and efficiency. These connectors spin-on quickly, tighten-down easily and back off easily if needed. Material is flame retardant.
  • Voltage Rating
  • Type
  • Temperature Rating
  • Standard
  • Size
  • Manufacturer Name
  • Connection
  • Overview
600 V
Twist On
221 deg F
UL, IEC, and CSA
22 - 8 AWG


  • 500/bag
  • UL Listed, CSA Certified and RoHS 2011/65/EU Compliant
  • 300V- or 600V-rated depending on wire combination for copper conductors and 1000V-rated for signs, fixtures or luminaires
  • Withstands temperatures up to 221 degrees F (105 degrees C)
  • Yellow flame-retardant nylon construction
  • Accommodates a range of 22 to 10 AWG copper conductors
  • Delivers uniform holding power
  • Used for appliances and fixtures, automotive and marine, commercial construction, industrial construction and residential construction
  • Twist-on type for quick connection
  • Used for connecting and insulating wires in a pigtail application
  • 3M™ Electrical Spring Connector 312 is used to connect 2 or more copper conductors in a pigtail application. Its nylon construction provides a flame-retardant property to the connector, making it ideal for use in applications that require safety. The spring design allows them to spin on quickly and tighten down easily.
  • 3M™ Electrical Spring Connector 312 delivers uniform holding power for reliable electrical connections. Wings enable easy, high torque installation. The spring inside the connector has a durable steel construction with a corrosion-resistant coating. It offers enough space to accommodate a wide range of solid or stranded copper wires. UL Listed, CSA Certified and RoHS 2011/65/EU Compliant.
  • Note: 3M products offered on a government contract that require country of origin representation must be certified by 3M Trade Compliance. Contact customer service at 800-245-3573 to request a certificate.
  • The designation that a product is Manufactured in the USA means the product undergoes substantial transformation in one of our U.S. Manufacturing plants. Some products contain imported components.
  • Manufacturing Origin: USA