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Ring Terminal - 12-10 Gauge Wire - 5/16" Ring ID

Ring Terminal - 12-10 Gauge Wire - 5/16" Ring ID

Item # 44-5356A
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Fastenal Wiring - 44-5356A

  • Wire Connectors
  • Ring Terminals
  • 5/16 Inch
  • 12-10 Gauge
  • Fastenal

Ring terminals are used for all types of electrical work where wires need fastening

  • For use with 12-10 gauge wire
  • Stud size: 5/16"
  • Vinyl insulation sleeve is yellow

44-5356A Ring Terminal - 12-10 Gauge Wire - 5/16" Ring ID

Video of Ring Terminal - 12-10 Gauge Wire - 5/16" Ring ID

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for 3M Wiring 44-5356A Review

Today we're going to review part number 44-5356A. This is the 3M Ring Terminal for size 10-12 gauge wire. This the 5/16" ring diameter size. These ring terminals are used for all types of electrical work where wires need to be fastened. This one is used for use with a 10-12 gauge size wire. It is designed to fit on a stud size of 5/16". It does have the vinyl insulation sleeve you can see, which is yellow. Basically, to show you how this would attach the wire I have section of 12-gauge wire right here.

I actually stripped maybe a little less than 1/2" off of there. What you want to do is basically you would slide the bare portion in right to where the metal portion is right there. You really don't want to slide it too far so it's exposed. You actually want to keep most of it underneath there. Once you have it underneath there, what I'll do is take a .. Here's a set of wire strippers.

The wire strippers will have the crimpers right down here. All you have to do is put this right in the correct size. Then when you push down on it like that, you squeeze hard enough, you can see that it will crimp that wire to that metal portion, to the ring terminal, and give you a good connection. It's not going to go anywhere. You can see you really don't want to have any of that bare wire exposed, so you want to keep it under the insulation sleeve. That should do it for the review on part number 44-5356A.

This is the 3M Ring Terminal for 10-12 gauge size wire with a 5/16" inside ring diameter. .

Customer Reviews

Ring Terminal - 12-10 Gauge Wire - 5/16" Ring ID - 44-5356A

Average Customer Rating:  4.9 out of 5 stars   (17 Customer Reviews)


Worked as advertised.


The manufacturer of my trailer screwed the grounding wire for the trailer into the tongue of the trailer using a self-tapping screw. That lasted about two months before the wire snapped free. Instead of having that happen again, I used this product by crimping the grounding wire to the but end and then I placed the cotter pin from the trailer coupler through the loop and the wire from that pin makes constant contact with the loop, allowing grounding. Worked like a charm and there's no tension on the grounding wire anymore.


Ordered several things to hook up trailer brake controller on my 2014 Jeep Wrangler Unlimited. Everything was promptly shipped and at a fair price.
Will use again, if I have the need.


worked just fine!


Im all thumbs and was able to totally rewire my trailer in an hour or so. No problems. I am legal again with my lights!! Thanks.


Prompt shipment...good quality


Very fast and accurate delivery. Good quality products



Work perfect
Harold - 11/19/2018


All items were great

still working great
chuck b - 07/07/2016


Prompt shipment...product is good quali ty


Everything arrived in a timely manner. Would use this vendor again.





Excellent customer service and prompt shipping.




See what our Experts say about this Fastenal Wiring

  • Making a Complete Ground on a Simple Utility Trailer
    The white ground wire just needs to be attached to the frame or tongue of the trailer so that the entire trailer frame and structure becomes an electrical ground. Make sure the ground has direct contact to the metal. Paint can sometimes act as an insulator preventing a good ground connection. Use a ring terminal, like part # 44-5356A, and attach it to the frame with a metal screw. It sounds like the lights on the trailer are grounded to the trailer body, so by attaching the short white...
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  • Replacement Ring Terminal for T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
    I'm sorry to hear that you lost the ring terminal that came with your wiring harness. In order to replace the ring terminal that came with your T-One Vehicle Wiring Harness # 118801 you can use the Ring Terminal - 12-10 Gauge Wire - 5/16" Ring ID # 44-5356A.
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  • Ring Terminal Recommendation for Circuit Breaker 9506P
    Sounds like you are looking for ring terminals to use with the circuit breaker part # 9506P. For that you would want the Ring Terminal # 44-5356A which has a 5/16 inner diameter and is designed for use with 10-12 gauge wires. The side of the breaker that has the copper looking post will be the side that runs to the battery and the other side will run to the accessory you will be powering.
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  • Connectors Needed for Connecting Husky Brute Jack to Trailer Battery Post
    If you have top posts you can use the part # DW05418 to give you an additional post on top of the terminal bolt that a ring terminal part # 44-5356A will fit. Almost all batteries out there will use this style of post.
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  • Can Powered A-Frame Jack Connect to Trailer Junction Box
    With powered a-frame jacks like the Lippert # LC285318 you referenced your best option for powering it is the battery that's mounted on the trailer as that will have the most amperage available. If your junction box runs to the trailer battery then you could run it there for a cleaner install. Or if you wanted to run it to the battery directly you certainly could. For a ring terminal for the junction box the part # 44-5356A would work well.
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  • Parts Needed to Wire Lippert Electric Jack to Trailer Battery
    You are correct, the red power wire coming out of the Lippert jack # LC285318 will need to be connected to the positive terminal on your trailer battery to provide a 12V power source. The jack is grounded through its mounting hardware. All you need is a ring terminal, like # 44-5356A, which accepts 12-10 gauge wire, and has a 5/16" diameter Ring ID to connect to your battery post. Once the red wire is inserted, use a wire crimper to affix the connector to the end of the wire. I've attached...
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  • Ring Terminal Recommendation that's Larger in Diameter than # DW05702-1
    Ring terminals are great for connecting wiring to trailer wiring as it makes for an easier and cleaner install. If you need a larger diameter ring terminal than the # DW05702-1 which has a diameter of 1/4 inch we have the # 44-5356A which has a diameter of 5/16 inch.
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  • Parts Needed to Mount 7-Way Connector and Run Power Wire to Vehicle Side Connector
    It sounds like you have a 7-Way blade-style connector at the back of your Corolla. We offer several mounting bracket options to secure a 7-Way connector like you referenced under your vehicle. The most popular bracket is the Mounting Bracket and Installation Hardware # 18138. I have attached a review video of this bracket for you. I have attached a link to all of our mounting brackets for 7-Way connectors. You can certainly connect your vehicle's 7-Way to the vehicle battery in order...
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    Image 1 for
  • Brake Controller Troubleshooting, Recommendation and Installation on 2019 Jeep Compass
    Are you speaking of the Tekonsha Prodigy RF? If so, the trailer connector on the vehicle needs funtional lighting circuits and a 12-volt constant power supply to the pin on the 7-way trailer that's in the 1:00 position. Assuming that you're using an adapter such as the # 37185, you'd plug the 4 pin plug on the adapter into the corresponding plug on the vehicle, ground the white wire to the vehicle chassis or frame and extend the black wire so it'll reach the vehicle's positive battery terminal....
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  • No Power on 12-Volt Pin at Trailer Connector on 2011 Chevy Silverado
    It sounds like you're not getting power at the pin in the 1:00 position in the trailer connector. If you've installed new fuses and attached the wires at the distribution box under the hood, at this point I'd just abandon that feed and run the circuit directly to the positive battery terminal using a length of # 10-1-1 wire, a # 9510 circuit breaker and 2 # 44-5310A small ring terminals and one # 44-5356A large ring terminal. At the rear of the vehicle, find the wire feeding the pin in...
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  • Parts Needed for Curt C51180 Wireless Brake Controller on 2016 Jeep Wrangler Unlimited
    As long as the 12-v pin in the 1:00 position on your 7-way connector is active, the Curt # C51180 Echo Wireless brake controller would work great for you with no additional parts needed, except for the smart phone used to control it. If that pin isn't active, you'd need to connect it to the positive battery terminal using # 12-1-1 wire with a # 9510 40A circuit breaker installed inline. You'll also need 2 # 44-5310A and one # 44-5356A ring terminal to make the connections at the battery...
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  • Locating Power Wire Under Hood of 2010 Chevy Silverado to Install Brake Controller
    If you can't find the wire between the distribution box and the fender, it might be installed already. Check the post on the front of the distribution box, shown in the photo I provided. If the wire is attached, the tow package power wire under the dash should be active already. If it's not, you can use a length of 10 gauge wire like 10-1-1. Use a ring terminal like # 44-5356A on one end, and the other end would go through the firewall to attach to the black wire on the brake controller....
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    Image 1 for
  • Options to Power Lights in Trailer Without Being Connected to 7-Way on Truck
    When it comes to running the lights in your trailer without having to hook to the 7-way on your truck, I recommend using some 10 gauge wire to add a car battery to your trailer for power. You'll just need a few supplies in addition to a battery; 10 gauge wire, # 10-2-1 (sold by the foot), 2 ring terminals like # 44-5356A, and a couple quick splice connectors, # 562. Just find a spot on the trailer for a battery, splice into the 12 volt circuit on your 7-way with one of the wires in part...
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  • Re-Wiring Old 4-Wire Boat Trailer Plug With a New 7-Way Trailer Plug
    Considering that the 4-wire round connector on your Dad's old boat trailer may be nearing the end of its life (due to use and corrosion) you will be better off replacing the 4-way round connector with a 7-way plug such as # H20046 from Hopkins. Installing a new trailer-side male plug will also avoid the complication and cost of having to use an adapter and it will make the trailer much more user-friendly to the majority of tow vehicles likely to pull it in the future. Installing the 7-way...
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  • Can You Extend the Ground Wire When Installing Trailer Wiring?
    The Curt Trailer Connector # C57672 should be grounded to any paint and debris free surface, preferably the vehicle frame; since the hitch is painted, it's not going to provide the best ground source for your 7 way connection. You can extend the ground and run it to a more convenient spot on the vehicle and you'll want to use a ring terminal like # 44-5356A (similar to the one found on the end of the ground wire of the C57672). If you need additional wiring, you can use # 10-1-1 which is...
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  • Fuse Location for 12-Volt Accessory Feed to 7-Way Trailer Connector on 2005 Chevy Silverado
    On GM vehicles of that vintage, the 12-V pin should be hot regardless of whether the ignition is on or not. If it isn't showing voltage even with the ignition on, you're almost certainly on the right track thinking it's a blown or possibly missing fuse. The 12-v feed circuit to the trailer connector is protected by a 40A fuse located in the power distribution box mounted to the inside of the driver's side fender in the engine compartment. Remove the lid and the cover to the box, which...
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  • Troubleshooting 7-Way Connector of 2006 Toyota Sequoia With No 12-Volt Feed at 7-Way
    If your 7-way on your Sequoia was installed at the factory, the 12-volt circuit should be active. Check the fuse box under the hood for a blown or missing fuse. If there's no blown fuse, you trace the 12-volt circuit from the rear of the vehicle looking for a loose connection, but abandoning the original and installing your own circuit as described below might be the simplest course of action. If the 7-way was installed aftermarket, check the terminal for the 12-volt pin at the rear of...
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  • Recommended Wireless Brake Controller for Lexus GX 460
    Actually, the Curt # C51180 Echo wireless brake controller would be perfect for your situation. If you're using an adapter like # 37185, all you'd need to do is run a length of 10 gauge wire, # 10-1-1 from the pin in the 1:00 position (which is the black wire on our adapter) to the positive battery terminal. You'll want to run this circuit through a # 9510 40A breaker located near the battery. You'll also need two # 44-5310A ring terminals to make the connection at the breaker and one #...
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  • Using 30 Amp Circuit Breaker with a Ham Radio Powered by Car Battery
    You can use 10-gauge wire # 10-1-1 and a 30 amp fuse, but a 30 amp in-line circuit breaker like # 38630 or # PK54530 will automatically reset if you experience a short or overload. With a fuse you would have to replace it. The 10-gauge wire is sold in 1 foot increments. There are 2 terminals on the circuit breaker. The copper-colored one labeled BAT connects to the battery and the one labeled AUX will go to your radio. You will need ring terminals like # 44-5356A. I have linked a video...
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  • Ring Terminal Butt Connector Availability
    I really wish we did, but the largest ring terminal wire gauges we carry is 10 gauge like the part # 44-5310A for a 3/16 inch ring diameter, # 44-5356A for a 5/16 ring diamter, or a part # DW05705-1 for a 3/8 inner diameter. For an excellent airtight and waterproof sealant for your wiring connections I would recommend the Deka Self-Fusing Auto Tape # DW04367.
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  • Wiring Curt C56322 and 37185 4-Pole/ 7-Way Adapter to Vehicle Battery for Wireless Brake Controller
    In order to power both the taillight converter and the 12-volt feed on the 7-way, you'll want to run two circuits from the rear of the vehicle to the positive battery terminal. The # C56322 converter includes the necessary wire, fuse holder, fuse and hardware to make the connection at the battery. To power up the 12-volt feed on the # 37185 adapter that feeds the wireless brake controller like the Curt Echo # C51180, you'll need a length of # 12-1-1 wire long enough to attach to the black...
    view full answer...
  • How to Activate 12-Volt Pin on 7-Way Trailer Connector Using 4-Pole to 7-Way Adapter
    If you currently have a 4 pole to 7-way adapter like # 37185, in order to get output on the 12-v pin in the 1:00 position, the black wire on the adapter needs to be ran to the positive battery terminal. You'll need a length of 10 gauge wire which we sell by the foot as part # 10-1-1 long enough to run under the vehicle from the adapter to the battery. You'll want to install a 40 amp breaker like # 9510 inline on that circuit, mounting it as close as possible to the battery. You'll also...
    view full answer...
  • Brake Controller Installed in 2005 Ford F-250 Not Getting Power From Battery
    There's two things to check. Go to the fuse box under the hood, and take a look at fuse location # 22. If the fuse is missing, look at the slot where the fuse installs. If there are metal pins in there that make contact with the fuse when it's installed, all you'll need to do is install a 30A fuse, and the harness feeding the brake controller will be powered up and you'll be good to go. If that fuse slot does NOT have the metal pins in it (which is sometimes found in XL Trim models) you'll...
    view full answer...
  • Brake Controller Installed in 2021 Chevy Silverado Z71 Trail Boss Not Powering Up
    Assuming that you've found the correct connector for the # 3064-P brake control harness which is located under the dash to the left of the steering column, I'd wager than you have a fuse missing in the power distribution box in the engine compartment on the passenger side. Check fuse location # 84, and make sure that there's a fuse installed there. If the fuse is missing or blown, you can obtain a replacement from your local auto parts store.
    view full answer...
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Info for this part was:

Employee Zack K
Video Edited:
Zack K
Employee Joshua S
Video Edited:
Joshua S
Employee Mike S
Updated by:
Mike S

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