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T-Spec Set Screw Ring Terminals 2-pack with 1 red and 1 black terminal (4-ga. 5/16" hole)

Item # 120RT804P

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20 questions - 57 answers

Item # 120RT804P

About the T-Spec Set Screw Ring Terminals

Buck Pomerantz

Make your connections tight

You'll get tight and secure connections for your amplifier's power and ground cables with a set of T-Spec's set screw ring terminals. You just insert the wire's stripped end and tighten the Allen head set screw for a long-lasting and worry-free electrical connection. This package includes two heavy-duty nickel-plated ring terminals; one marked black, the other red. Warranty: 1 year.

What's in the box:

  • Two flat-black set-screw ring terminals for 4 AWG wire
  • 2 Rubber insulators
MFR #V10-RT804P

Customer reviews for T-Spec Set Screw Ring Terminals

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More details on the T-Spec Set Screw Ring Terminals

Mark G.
The T-Spec Set Screw Ring Terminals replaces these items:

Product Research

Features

4AWG Ring Terminals: This package includes a pair of T-Spec v10-series ring terminals for your power cables. The terminals have a flat black finish, and can accommodate 4 AWG wire. A rubber insulator is included with each ring terminal.

  • Overall Length: 2.305"
  • Outer Diameter: 0.635"
  • Inner Diamter: 0.345"
  • Ring Terminal Size: 0.3125"

Set Screw: The terminals have a heavy duty set screws to securely hold the power cable in place. A 3mm Allen wrench is required to tighten or loosen the set screws.

Polarity: The ring terminals have a band around them to mark the polarity. One terminal has a red band and the other has a blue band.

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Customer Q&A

20 questions already asked

Q
Will this fit into a Pioneer GM-DX971 amp power/ground terminals?
sean  Oct 24, 2019
1 answer
A
Hi Sean, thank you for your question. You should have no problem with using these terminals with your Pioneer GM-DX971 amplifier. Feel free to chat with us online or by phone at 1-800-324-9695 if you need anything else!
jessica  Nov 06, 2019 (Staff)
Q
Will these fit an Alpine MRP-500 amp for the ground + power wires, I have 4 gauge wire currently installed?
kaiser  Oct 31, 2018
1 answer
A
These should fit your 4 ga. wires and the terminals on the amp as well. I use these terminals for 4. ga wire and they fit the terminals on my Pioneer amp perfectly. Luckily, Crutchfield has amazing service and will likely refund you should they not fit.
alex  Nov 05, 2018
Q
Will these go in to a speaker output on a amp that has narrow screw down connectors? It's a kicker 1200.1 if that helps.
rick  Mar 22, 2018
1 answer
A
Connectors like these can work as long as the opening in the port on the amp is at least 0.638" wide or wider. But I should mention these may not hold the speaker wire as they are designed to work with wire as big as 4 gauge. We have connectors better suited for speaker wire gauges. I recommend contacting an advisor on 1-800-324-9695 for a personal recommendation My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=101
jason  Apr 02, 2018 (Staff)
Q
anybody know what size the set screw is? just want to make sure it's meaty enuf and not too small.
gary  Jan 26, 2018
1 answer
A
The set screw is plenty large. It is 5/16 (.312) in diameter.
ogaz enterprise  Jan 31, 2018
Q
Do the barrels become electrified? My terminal posts are very close together. I worry the metal would easily touch the other connector and short out.
jesusali  Apr 23, 2017
2 answers
A
Yes the whole thing will be electfied
keane  Apr 25, 2017
A
No, it doesnt touch each other plus it have a cover for the wire. I never have an issue with it.
amaury  Apr 24, 2017
Q
Will this fit 2 gauge wire?
hank  Jul 09, 2016
2 answers
A
Nope, 4 gauge is as big as will fit.
michael  Jul 10, 2016
A
Yes it will fit.... i have several sets and have had no problems. I would suggest to also buy metric allen wrench set to properly tighten.....
troy  Jul 09, 2016
Q
Are the terminal holes the right size to fit onto the car battery? Also, does it come with any plastic tubing (once it's connected to the wire) to seal over the connection?
nick  Aug 20, 2014
8 answers
A
The holes are only about 3/8". I used them to connect to a distribution block. I can't remember if it came with a plastic sleeve, I think it did
kenneth  Aug 23, 2014
A
Yes I have one on my terminal fits no problem
kertton  Aug 23, 2014
A
Hi Nick, The holes do not fit on the actual battery terminal but they do fit the screws that tighten down the battery cables. That's where I put them.
michael  Aug 22, 2014
A
Yes to both of your questions.
jaja  Aug 22, 2014
A
No plastic tubing . Terminal holes fit over standard 3/8" screw studs but NOT over the large smooth studs on a car battery.
thuy  Aug 22, 2014
A
Yes they do.
love c  Aug 22, 2014
A
Yes they do.
love c  Aug 22, 2014
A
they will work with a gm adapter that screws into a side mount battery and they do have plastic covers i used these and works and looks nise
scott  Aug 22, 2014
Q
Is the end flush when bolted down or is there a small bump to raise it up?
cory  May 13, 2020
1 answer
A
I'm not quite sure that I understand your question, however, the male end is flat on one side and convex on the other.
thor  May 13, 2020
Q
I have the alpine mrp-m500 and running 0 gauge wire will these work for my amp?
t  Mar 02, 2020
3 answers
A
Yes they will work great but sand the painted surface where you it Connects the screw to the body of vehicle
harold  Apr 12, 2020
A
Yes those would be appropriate for 1/0 gauge power wire.
casey  Apr 08, 2020 (Staff)
A
First and foremost not trying to get technical these will not work for your amplifier but works for the amplifiers wires
dale  Apr 03, 2020
Q
Will these work on my Kicker 46CXA400.1T?
jeff  Jan 24, 2020
1 answer
A
not for sure i dont have a kicker amp i used these on my 2nd battery going to amps
rory  Jan 24, 2020
Q
Hello is this good for power and ground for a CX 300.4 Four-Channel Amplifier 0/1 gauge wire thank you ?
federico  Aug 19, 2019
1 answer
A
Hi Federico, thanks for your question! The T-Spec Set Screw Ring Terminals would work out great for your power/ground wires! These terminals will give you a sturdy connection, so you won't need to worry about any frayed or loose wiring.
jessica  Aug 29, 2019 (Staff)
Q
Hi I have a Power Acoustik Caliber Class D 8000w Amplifier. Will this product fit my power and ground terminals?
robert  Mar 16, 2019
2 answers
A
You will have to grind down the front and terminals
william  Mar 18, 2019
A
The power terminals on your amp do not require these. You would simply strip the last 3/8" of your wire, insert it into the terminal, and tighten the set screw.
gary  Mar 16, 2019
Q
Hi I have a Power Acoustik Caliber Class D 8000w Amplifier. Will this product fit my power and ground terminals?
robert  Mar 16, 2019
8 answers
A
If your using for power and ground into the amp you can't use these you either want reducers or just put your wires into the amp if they fit without reducers. These are good for hooking to your battery.
charlie  Mar 22, 2019
A
Yes
jerry  Mar 22, 2019
A
It should . I have a 3000 planet audio amp I had to file down the sides a tad bit but it being a 8000w I'm sure they built it to use 0 gauge wire .
dominick  Mar 22, 2019
A
I'm not really sure. SorryEnter
jeffrey  Mar 22, 2019
A
No, I bought these for the same use, they are massive, way to big to use as terminals for my amplifier
jacob  Mar 22, 2019
A
Depends on if they're fitted for 0 gauge wire initially, considering 0 gauge is significantly larger than 10/12. When I purchased these I did have to modify their size to accommodate for the terminals, but overall they were easy to modify. It won't affect their output level, it's just a connection.
eithian  Mar 22, 2019
A
I doubt it. These are more for connections to the battery or a capacitor.
donnie  Mar 22, 2019
A
They are 3/4 inch wide. Check your amp terminal width because I am unsure. Hope that helps
michael  Mar 16, 2019
Q
Are they 100% copper inside?
jovan  Sep 26, 2018
2 answers
A
They look to be copper on the inside, nickel plated on the outside, but it's not specified anywhere that I can find.
gary  Oct 02, 2018
A
Yes
tony  Oct 02, 2018
Q
Will this fit two #4s?
aaron  Jul 19, 2018
2 answers
A
Technically yes, but I would recommend putting the two #4 into a splitter and coming out with #1/0 6 to 12 inches from the splitter and put the end on it!
brian  Jul 19, 2018
A
Yes
harvey  Jul 19, 2018
Q
Will this also fit 0 gauge?
nickkkk  Dec 16, 2017
5 answers
A
Yes
tony  Oct 02, 2018
A
Yes it will
gregory  Dec 17, 2017
A
Yes but use the covers that comes with them and you might have to grind them a little
nicholas  Dec 16, 2017
A
Depends on the brand. Some have thicker wires than others. If the 0 guage wire is on the thicker side than it might not fit
david  Dec 16, 2017
A
Yes
shacoby  Dec 16, 2017
Q
Will these fit 0 gauge too?
nickkkk  Dec 16, 2017
5 answers
A
Yes, no issues.
tony  Dec 22, 2017
A
Yes. Zero gauge fits just fine.
michael  Dec 19, 2017
A
They will as 0 gauge is only slightly smaller than 1/0, but you will want to use something like a ferrule or some means of keeping the strands of your power cable together. I used on 1/0 and used a ferrule with these terminals to keep the end of the wire clean and no frayed strands.
brandon  Dec 18, 2017
A
I used 4 gauge and from the about this item it says 1/0 ga meaning yes it will fit 0 gauge
drew  Dec 17, 2017
A
Don't know, I got them hooked up to 2 gauge welding cable..
juan  Dec 16, 2017
Q
will this fit a 2/0 wire ?
jeffrey  Aug 23, 2017
3 answers
A
Yes . That's what I have now .
dominick  Mar 22, 2019
A
Never hurts to try if no you could always return it
drew  Dec 17, 2017
A
No it won't, only 1/0 gauge.
jarod  Aug 23, 2017
Q
Do this item connect directly to a compacitor?
kevin  Aug 06, 2014
7 answers
A
Yes it does
christopher  Aug 06, 2014
A
Do you mean capacitor ?Yes it does!
mauro  Aug 06, 2014
A
Should work but you would probably need to mount with the ring upside down so it will sit flush. Short answer, yes.
craig  Aug 06, 2014
A
Yes
patrick  Aug 06, 2014
A
To a compactor, I am not sure! If you want to connect to an amp, you will have to shave the brass down to fit! You should be fine, just if you do have to grind down the side it will shave fast so be careful!
joshua richard  Aug 06, 2014
A
I used these terminals to connect to batteries & battery switches. I do not have any capacitors in my system, nor have I worked with capacitors for audio systems, so I am not familiar with there shapes. What I can tell you is that these terminals are quite large & well built. I was surprised to see how substantial these terminals are. So... 1) You must ensure that you have some space around your capacitor to use these. They are far bigger than normal crimp on terminals. 2) With normal crimp on terminals, one side is almost perfectly flat with the bottom of the terminal. Example... ------------- ||||||||||||||||| -------------------- With these terminals, neither side is "perfectly" flat because of the large round barrel. ONE side of these terminals is "flatter" than the other, but neither side will fit flush against the top of the battery, capacitor, whatever. Example... ------------- ------ ||||||||||||||||| -------------
joseph r  Aug 06, 2014
A
Yes
derek  Aug 06, 2014
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