Professional 1/0 Gauge Ring Terminal Chrome, Set Screw, Deep Recess, Positive or Negative.
Product Overview
The Stinger SPT520 is a PRO-series 1/0 gauge (0 AWG) ring terminal featuring a 5/16″ ring opening, oversized set screw connection, and a deep wire recess for a clean, secure termination of heavy 0 gauge power or ground cable. Finished in chrome, this terminal is built for high-current applications where a reliable, low-resistance connection at the ring terminal is essential whether at a battery terminal stud, distribution block, amplifier chassis ground, or circuit breaker.
One red and one black polarity rubber band are included, allowing the same terminal to be used for either positive or negative applications without purchasing separate terminal types. The oversized set screw provides a firm, tool-tightened mechanical hold on the heavy 0 gauge wire, while the deep wire recess ensures the wire is fully seated within the terminal body before clamping.
Key Specifications
- Wire gauge: 1/0 gauge (0 AWG)
- Ring opening: 5/16″
- Connection type: Oversized set screw
- Finish: Chrome
- Wire recess: Deep
- Polarity bands: Red and black included
- Application: Positive or negative
- Brand: Stinger
- SKU: SPT520
Features & Benefits
-
Deep wire recess: Ensures heavy 0 gauge wire is fully seated and securely held within the terminal body before the set screw is tightened, providing a clean, professional termination
-
Oversized set screw: Large set screw delivers a tight, secure mechanical grip on heavy 0 gauge wire, reducing the risk of the terminal working loose under vibration in high-current applications
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Chrome finish: Premium chrome appearance suited to custom audio builds and professional installations where build quality is visible throughout
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5/16″ ring opening: Fits standard 5/16″ studs used on amplifiers, distribution blocks, battery terminals, and circuit breakers across most car audio applications
-
Red and black polarity bands: Both bands included, allowing the terminal to be used for positive or negative applications from a single purchase
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1/0 gauge input: Correctly sized for heavy 0 AWG power and ground cabling used in high-current audio builds and main power runs
Technical Specs
| Specification |
Detail |
| SKU |
SPT520 |
| Brand |
Stinger |
| Wire Gauge |
1/0 AWG (0 gauge) |
| Ring Opening |
5/16″ |
| Connection Type |
Oversized set screw |
| Wire Recess |
Deep |
| Finish |
Chrome |
| Polarity Bands |
Red and black (both included) |
| Application |
Positive or negative |
Compatible With
Universal suits all 12V automotive and audio installations requiring 1/0 AWG ring terminations including:
- Main power run terminations at battery, distribution block, or circuit breaker
- Amplifier chassis and battery ground connections (0 gauge)
- Distribution block 0 gauge input terminations
- Circuit breaker input terminations
- Custom high-current audio build power and ground connections
Pairs well with:
- Stinger SPT528 (8 gauge chrome ring terminal) for smaller gauge connections in the same build
- Stinger SPT828 (8 gauge gold ring terminal) for gold finish alternatives
- Stinger SPT5210 (0 gauge wire coupler) for extending 0 gauge runs
- Stinger SPT521 (gauge reducer adapter 0GA to 4GA pin)
- Stinger 0 gauge power and ground cable
- Stinger battery terminals and circuit breakers
Frequently Asked Questions
How does the SPT520 differ from the SPT528?
Both are chrome pro ring terminals with oversized set screws, deep wire recesses, and red/black polarity bands. The SPT520 is designed for 1/0 gauge (0 AWG) the heavy main power run gauge while the SPT528 is designed for 8 gauge. Choose based on your cable gauge.
What does the deep wire recess do?
The deep recess ensures the 0 gauge wire is fully inserted and seated within the terminal body before the set screw is tightened, providing a more secure mechanical connection and a cleaner, more professional termination.
Can this terminal be used for both positive and negative connections?
Yes the SPT520 includes both a red and a black polarity rubber band, allowing the same terminal to be used for either positive or negative applications. Fit the appropriate colour band to identify the polarity of the connection.
What stud size does the 5/16″ ring opening fit?
The 5/16″ ring opening suits standard 5/16″ studs commonly found on amplifiers, distribution blocks, battery terminals, and circuit breakers used in car audio installations.
What is the return policy for this product?
Return eligibility is subject to the retailer's policy. Contact the seller before ordering if you have any questions about this product.
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