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Manufacturer 3M
Mfg Catalog # 31178
Irby Part # 2993887


The 3M Scotchlok Copper Two Hole Long Barrel Lug 31178 is used on copper conductors only. It is constructed of one-piece, seamless, high-conductivity copper.


  • Pad Width: 1.72 Inch
  • Color: White
  • Pad Length: 3 Inch
  • Barrel Length (metric): 74.6 mm
  • RoHS 2011/65/EU Compliant: Yes
  • Inside Diameter: 1.17 Inch
  • Center of Hole to End of Pad: 0.63 Inch
  • Conductor Sizes: 1000 kcmil
  • Number of Holes: 2
  • Stud Sizes: 1/2 Inch
  • Outside Diameter (metric): 38.1 mm
  • Center of Hole to Center of Hole (metric): 44.5 mm
  • Center of Hole to Center of Hole: 1.75 Inch
  • RoHS EU Comments: RoHS 2011/65/EU compliant without exemption
  • Outside Diameter: 1.5 Inch
  • Barrel Style: Long Barrel
  • Inside Diameter (metric): 29.7 mm
  • Length: 7.28 Inch
  • Trademark: Scotchlok
  • Pad Length (metric): 76.2 mm
  • For Use With: Copper Conductor Only
  • Pad Width (metric): 43.7 mm
  • Center of Hole to End of Pad (metric): 16.0 mm
  • Barrel Length: 2.94 Inch
  • Length (Metric): 184.9 mm
  • Lug Base Metal: Copper



UPC 05400700907
GTiN 00054007009078
Length 7.28 in
Color White
Barrel Type Long Barrel
Stud Size 1/2 in
Conductor Size 1000 MCM
Applications Copper Conductor Only
Capacity 2
Family Brand Name 3M
Barrel Length 2.94 in
Inside Diameter 1.17 in
Sub Brand Scotchlok

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