Ancor 310503 Marine Grade™ Heat Shrink Ring Terminals, 5/16" Fastener, 22-18 Wire, Red, 3/Pk
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Create secure, marine-ready wire connections with Ancor Marine Grade™ heat shrink ring terminals. This 3-pack is built for a 5/16" fastener and crimp-ready for 22–18 AWG wire, with adhesive-lined heat shrink tubing to help seal out moisture and resist vibration.
Key Features
- Marine Grade™ heat shrink ring terminals for wiring applications
- Adhesive-lined heat shrink tubing shrinks to form a tight seal
- Helps provide vibration and strain relief for the connection
- Designed for 22–18 AWG wire and a 5/16" fastener
Intended Use
- Marine electrical wiring and connections
- 12V/24V boat electrical systems
- Ground and power terminations to a 5/16" stud or fastener
Product Details
- Brand/Series: Ancor Marine Grade™
- Terminal Type: Heat Shrink Ring Terminals
- SKU: 639-310503
- Wire Range: 22–18 AWG
- Fastener Size: 5/16"
- Color: Red
- Package Quantity: 3/Pk
- Variant Barcode: 091887311013
Parts Desk Insights
Best Use Case: Best for crimping a ring terminal to 22–18 AWG marine wire, then heat-shrinking to help secure and seal the finished connection.
Common Issues: Common problems include mismatched wire gauge (crimp may not seat correctly) or poor heat-shrink performance if the tubing isn’t fully shrunk—verify the ring terminal is crimped properly before applying heat.
Related Products & Accessories
- Browse heat shrink & adhesive lined electrical connectors - Find additional Ancor heat shrink ring terminals and related wiring connections.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.