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Ancor 311503 Heat Shrink Ring Terminals 16-14 AWG 5/16" Stud Marine Grade 3-Pack

Manufacturer

Ancor

<h3>Ancor: The Standard in Marine Grade® Electrical Wiring</h3><p>When it comes to marine electrical systems, few names carry as much weight as Ancor. For over four decades, Ancor has held its position as the originator and market leader of <strong>Marine Grade®</strong> wire and wire management solutions. What sets Ancor apart is not just longevity — it is a relentless commitment to engineering products specifically for the harshest environments on earth: saltwater, intense UV exposure, engine-bay vibration, and extreme temperature swings that would destroy ordinary electrical wire.</p><p><a href="/7231-ancor-wire-cable-201198">Ancor wire and cable</a> forms the backbone of countless boat electrical systems, and for good reason. Every conductor is built from tinned copper stranding, a critical distinction from standard bare copper wire. Tinning each individual strand electroplates it with a protective layer that guards against the corrosion and electrolysis that can silently wick through unprotected wire and cause total system failure. The proprietary premium vinyl insulation stays flexible even in extreme cold down to -40°F, while simultaneously resisting saltwater, battery acid, oil, gasoline, and ultraviolet radiation.</p><p>Ancor products are manufactured to precise specifications and designed to meet UL, ABYC, NMMA, and USCG standards — and in many cases exceed them. This industry involvement means that when you wire a boat with Ancor, you are building to a standard recognized by the U.S. Coast Guard, the American Boat and Yacht Council, and the National Marine Manufacturers Association.</p><p>The Ancor catalog spans a comprehensive range of marine electrical needs. Their <a href="/7231-ancor-primary-wire-10128">primary wire</a> is available across a full spectrum of gauges and in every color recommended by ABYC standards, making circuit identification straightforward and code-compliant. For high-current applications like engine starting and battery banks, Ancor's <a href="/7231-ancor-battery-cable-2500">battery cable</a> uses ultra-flexible Type 3 stranding that makes routing heavy-gauge conductors through tight bilge spaces far more manageable. Completing the connection, Ancor's <a href="/7231-ancor-battery-lugs-200145">battery lugs</a> are manufactured from 100% heavy-duty annealed tinned copper to maximize current flow while resisting the corrosive marine atmosphere at every terminal point.</p><p>Beyond conductors, Ancor's product ecosystem includes terminals, connectors, heat shrink tubing, cable ties, and professional installation tools — all engineered to work together as a unified system. Whether you are rewiring a center console from scratch or making targeted repairs to an aging offshore cruiser, Ancor provides the components to do the job right the first time.</p><h3>Why Ancor Is the Go-To Brand for Marine Electricians</h3><ul style="list-style:disc"><li><strong>Tinned Copper Construction:</strong> Every strand is individually electroplated to fight corrosion and electrolysis at the conductor level.</li><li><strong>Proprietary Insulation:</strong> UV, saltwater, acid, oil, and abrasion resistance rated at 600 volts and 221°F dry / 167°F wet.</li><li><strong>Standards Compliance:</strong> Meets and exceeds UL 1426, ABYC, NMMA, and USCG (CFR Title 46) requirements.</li><li><strong>Complete System Approach:</strong> Wire, cable, terminals, connectors, lugs, and tools all designed for compatibility.</li><li><strong>ABYC Color Coding:</strong> Full range of color options ensures proper circuit identification per industry standards.</li></ul><p>From weekend fishing boats to long-range bluewater cruisers, Ancor's Marine Grade® product line delivers the reliability that on-the-water safety demands. Explore the categories below to find the right Ancor solution for your next electrical project.</p>

Part Number

311503
09/16/2036 7:36 AM
Sale Price

$4.57

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Ancor 311503 Marine Grade™ Heat Shrink Ring Terminals provide professional-grade electrical connections designed specifically for harsh marine environments. These terminals feature dual-wall construction with an adhesive-lined heat shrink sleeve that creates a complete waterproof seal when heated, protecting connections from salt water, oil, acids, and UV exposure.

Specifications:

  • Wire gauge: 16-14 AWG
  • Stud size: 5/16 inch
  • Package quantity: 3 terminals
  • Shrink temperature: 257°F (125°C)
  • Operating temperature: -40°C to 110°C
  • Color: Blue (wire gauge identification)

Key Features:

  • Cross-linked polyolefin tubing resists burning and provides superior strength compared to PVC
  • Heat-activated adhesive lining creates an impervious seal and provides strain relief
  • Nylon insulator offers Marine Grade™ resistance to sunlight, water, oil, chemicals, and vibration
  • Highest shrink ratio shrinks to 1/3 original size for tight, secure fit
  • Tinned pure copper construction for maximum corrosion resistance and current flow
  • Brazed seam ensures maximum mechanical strength
  • UL Listed and CSA Recognized

These terminals are ideal for marine electrical systems, boat wiring, and any application requiring waterproof, corrosion-resistant connections. Simply crimp the terminal to the wire, then apply heat to shrink the tubing and activate the adhesive seal.

Products specifications

American Wire Gauge (AWG)

16-14 AWG

Color

Blue

Fastener Size

5/16"

Material

Heat Shrink Tubing

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