Already a Customer? Log in to view your pricing
Manufacturer 3M
Mfg Catalog # 31166
Irby Part # 22724


The 3M Scotchlok Copper Two Hole Long Barrel Lug 31166 is used on copper conductors only. It is constructed of one-piece, seamless, high-conductivity copper.


  • Outside Diameter: 1.06 Inch
  • Barrel Length: 2.19 Inch
  • RoHS EU Comments: RoHS 2011/65/EU compliant without exemption
  • Center of Hole to End of Pad (metric): 16.0 mm
  • Outside Diameter (metric): 26.9 mm
  • Length (Metric): 156.4 mm
  • Barrel Length (metric): 55.6 mm
  • Center of Hole to End of Pad: 0.63 Inch
  • Pad Width (metric): 38.9 mm
  • Agency Approvals: UL Listed
  • Color: Brown
  • Trademark: Scotchlok
  • For Use With: Copper Conductor Only
  • Inside Diameter (metric): 21.1 mm
  • Pad Length (metric): 76.2 mm
  • Stud Sizes: 1/2 Inch
  • Number of Holes: 2
  • Lug Base Metal: Copper
  • Center of Hole to Center of Hole: 1.75 Inch
  • Pad Width: 1.53 Inch
  • Length: 6.16 Inch
  • Conductor Sizes: 500 kcmil
  • RoHS 2011/65/EU Compliant: Yes
  • Barrel Style: Long Barrel
  • Center of Hole to Center of Hole (metric): 44.5 mm
  • Inside Diameter: 0.83 Inch
  • Pad Length: 3 Inch



UPC 05400712691
GTiN 00054007126911
Length 6.16 in
Color Brown
Barrel Type Long Barrel
Stud Size 1/2 in
Conductor Size 500 MCM
Applications Copper Conductor Only
Capacity 2
Family Brand Name 3M
Barrel Length 2.19 in
Inside Diameter 0.83 in
Sub Brand Scotchlok

Your Product Lists

Log In or register for an account to gain access to the product groups feature!

You can create lists of products for regular needs, special projects, even use one as a wishlist.

Your Part Numbers

Log In or register for an account to assign your company part numbers to products!

No more memorizing or cross-referencing! Map your company's internal part numbers to items, then use your part numbers for searching and ordering.