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StreetWires 4-gauge Inter-Lok® Power Rings® provide a highly-secure, compression fit connection in which every strand of your power wire maintains ultra-tight contact with the terminal. Just insert the bare wire end and twist the Inter-Lok terminal to hold the wire in place.

Unlike crimp-on rings, Inter-Lok® rings are reusable. They are precision machined from high-conductivity brass with an attractive, corrosion-resistant Diamond Plate Nickel plating. Machined external sculpting adds flair to your installation. Warranty: lifetime.

StreetWires 4-gauge Inter-Lok® Power Rings® Reviews

Average Customer Review:

3 Reviews

ok but not great

Written by: James from Eau Claire, WI on March 18, 2010

Crutchfield Customer Review (What's this?)

Not easy to use as mentioned before no instructions do not work with streetwires battery terminals at least not of you want to use the plastic covers that come with the terminals, on the positive side i had to use some old crimp on terminals. to use them you need to strip off enough so that about 3/8 of an inch of bare wire will stick out the inner sleeve then fold it over and screw on the outer terminal.



Great product

Written by: miles44 from Los Angeles, CA on September 23, 2008

Using this product with my street wires distribution block and battery terminal. Very easy to use and install. Made of high quality material. :)



StreetWires 4-gauge Inter-Lok® Power Rings®

Written by: moolee472 from garfield, new jersey on April 10, 2008

Crutchfield Customer Review (What's this?)

nice product but they had no instructions. with a little trial and error i got them to work. i don't know if it was the right way or not but they are working so far.



Hands-on research

What's in the box?

  • Two 4-gauge Inter-Lok power rings (one has a red band and the other has a black band)
  • Two 1.875" lengths of translucent heat shrink insulation

Product Research


Overview: These connectors are designed to provide a secure, crimp-less termination for 4-gauge power and ground cables. The body of each connector is screen printed with a colored band. One connector has a red band on it, while the other is imprinted with a black band.

Installation: When installing these Inter-Lock power rings, follow the instructions listed below:

  • Remove the top section of the connector (top unscrews from the bottom)
  • Push the wire (with stripped end) up through the bottom section of the connector
  • Fold the bare wire over the top edge of the bottom section of the connector
  • Screw the top section of the connector onto the bottom to secure the wire

Additional Dimensions:

  • Barrel Diameter: 0.668"
  • Overall Length (with both sections connected securely): 2.441"
  • Terminal Width: 0.667"
  • Terminal Length: 0.931"
  • Internal Diameter: 8mm (0.318")

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.