Heat Shrink Ring Terminal 8 AWG 5/16" Stud 25-Pack (1385348)
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Heat Shrink Ring Terminal — 8 AWG, 5/16" Stud, 25-Pack
Handle high-current marine circuits with confidence using these adhesive-lined heat shrink ring terminals. Rated for 8 AWG wire and 5/16" studs, the 1385348 is engineered for the heavier-gauge runs found on windlasses, bow thrusters, bilge pumps, battery interconnects, and main distribution bus connections — where both current capacity and a watertight seal are non-negotiable.
Key Features
- Dual-Wall Adhesive-Lined Heat Shrink — Inner adhesive flows into the crimp zone during heating, creating a fully sealed, waterproof connection that resists corrosion in salt and bilge environments
- 8 AWG Heavy-Gauge Rating — Sized for high-current accessory circuits; suitable for windlasses, thrusters, bilge pumps, inverters, and battery bank interconnects
- 5/16" Stud Size — Fits the 5/16" studs common on battery terminals, main bus bars, solenoids, and high-current distribution blocks
- Tinned Copper Barrel — Corrosion-resistant tinned copper crimp barrel maintains low resistance and long-term conductivity in marine environments
- Closed-Ring Design — Ring cannot back off the stud under vibration, ensuring a permanent, secure connection at high-current termination points
- 25-Pack Quantity — Enough for a full high-current wiring project or a comprehensive onboard spares kit
Specifications
- Type: Heat shrink ring terminal (adhesive-lined, dual-wall)
- Wire Gauge: 8 AWG
- Stud Size: 5/16"
- Barrel: Tinned copper
- Sleeve: Dual-wall adhesive-lined heat shrink
- Quantity: 25 per pack
- Application: Windlasses, bow thrusters, bilge pumps, battery interconnects, main bus bars, solenoids
- SKU: 1385348
Terminal Family — Choosing the Right Gauge & Stud
- 16–14 AWG, 1/4" stud — Panel wiring, fuse blocks, switches, instruments (SKU 46388)
- 16–14 AWG, 3/8" stud — Panel wiring at larger bus bars (SKU 825085)
- 8 AWG, 5/16" stud — High-current accessories, battery interconnects, solenoids (this SKU — 1385348)
Always match terminal gauge to wire gauge and stud size to the terminal block specification before ordering.
Installation Notes
Strip 8 AWG wire to the correct length — the conductor should fill the barrel without protruding. Use a heavy-duty ratcheting crimper rated for 8 AWG — standard light-duty crimpers will not produce a reliable crimp at this gauge. Apply heat evenly with a heat gun until the sleeve shrinks uniformly and adhesive flows from both ends. Allow to cool fully before torquing the stud nut. Torque to the terminal block manufacturer's specification to ensure a gas-tight mechanical connection.
For high-current marine circuits, the 1385348 delivers the sealed, vibration-proof termination that keeps your critical systems running reliably offshore and at the dock.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.