Stinger SPT520 PRO Ring Terminal 1/0 Gauge 5/16
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Stinger SPT520 PRO Ring Terminal 1/0 Gauge 5/16" Hole

SKU: SPT520
Sale price
$20.25
Regular price
$22.50
You save
10%
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Shipping information

We offer fast and reliable shipping options to ensure that your order arrives in a timely manner. Our dedicated team works diligently to process and ship your items as quickly as possible.

Here are some key points to note about our shipping policy:

Standard Shipping

  • Frankies offers a $15.95 flat rate for Australia-wide shipping, no matter how many items you order. Some larger or heavier items may incur an additional fee, which will be communicated to you when your order is processed.
  • While we endeavour to dispatch all orders promptly, please be advised that due to the current national fuel shortages in Australia and the resulting pressure on logistics networks, order processing and dispatch may take up to 7 business days. We are not liable for delays caused by third-party freight carriers or fuel-related logistical disruptions. By placing an order, you acknowledge that delivery timeframes may be extended beyond our standard estimates during this period.

Estimated delivery times:

  • WA, NT, and TAS: currently experiencing longer shipping times
  • Holiday periods (e.g. Christmas): deliveries may be delayed due to increased freight volumes

Express Shipping

  • Express shipping is available and calculated based on your delivery location, as well as the size and weight of your order. To receive an accurate quote, please contact our Albion Park Rail store and request an "express shipping quote." Our team will promptly assist with pricing and availability. Payment for express shipping can be securely arranged over the phone.

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Product features

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
  • Chrome finish: Premium chrome appearance suited to custom audio builds and professional installations where build quality is visible throughout
  • 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
  • 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.