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Ancor 312599 Marine Grade Heat Shrink Ring Terminals 12-10 AWG 5/16" Stud 100-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

312599
09/12/2036 7:03 AM
Sale Price

$42.54

In Stock (10+)

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Product Details

The Ancor 312599 Marine Grade Heat Shrink Ring Terminals deliver professional-grade electrical connections engineered specifically for harsh marine environments. Designed for 12-10 AWG wire and 5/16" fasteners, these terminals combine superior materials with heat-activated sealing technology to provide reliable, long-lasting performance on boats and marine equipment.

Advanced Heat Shrink Technology:

  • Cross-linked polyolefin tubing resists burning and outperforms standard PVC in strength and durability
  • Heat-activated adhesive lining creates an impervious seal against salt water, oil, acids, and UV sunlight
  • Industry-leading shrink ratio reduces to 1/3 original size for tight, secure fit
  • Activates at 257°F (125°C) for reliable heat shrinking
  • Provides superior strain relief and vibration resistance

Marine-Grade Construction:

  • Pure copper conductor for maximum current flow and conductivity
  • Tinned copper construction resists corrosion in saltwater environments
  • Brazed seam ensures maximum mechanical strength
  • Nylon insulator offers excellent resistance to sunlight, water, oil, chemicals, and cut-through damage
  • UL Listed and CSA Recognized for quality assurance

Specifications:

  • Wire gauge: 12-10 AWG
  • Stud size: 5/16" (8mm)
  • Operating temperature range: -40°C to 110°C
  • Color: Yellow for easy gauge identification
  • Quantity: 100 terminals per pack

These heat shrink ring terminals are ideal for critical marine electrical connections where moisture protection and reliability are essential. The combination of tinned copper, adhesive-lined heat shrink, and nylon insulation makes them perfect for boat wiring, marine electronics, battery connections, and any application exposed to water, salt spray, or extreme conditions.

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