Ancor Marine Grade™ Tinned Battery Lugs | 1/2" Fastener | 3/0 Cable | 2-Pack | 252717
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Ancor Marine Grade™ Tinned Battery Lugs — 1/2" Fastener, 3/0 AWG, 2-Pack
Designed for 3/0 AWG cable and a 1/2" fastener hole, these Ancor tinned copper battery lugs are built for the highest-current connections on board — where a secure, corrosion-resistant termination is non-negotiable. Pure copper construction delivers maximum current flow, while the tin plating protects against moisture and salt air. The closed-end barrel seals the cable entry point against water intrusion, ensuring long-term connection integrity in demanding marine environments.
The 1/2" fastener size is the right fit for large battery post bolts, heavy-duty bus bars, and high-capacity inverter terminals where a 3/8" stud won’t fit.
Compatible Applications
- Large marine battery bank connections with 1/2" post bolts
- High-capacity inverter and charger wiring
- Windlass and bow thruster circuits
- Heavy-duty DC distribution bus bars
- Commercial and offshore vessel electrical systems
Product Details
- Cable Size: 3/0 AWG
- Fastener Size: 1/2"
- Material: Pure tinned copper
- Barrel: Closed-end to seal out moisture
- Pack Quantity: 2 lugs
- Part Number: 252717
Also available with a 3/8" fastener: Ancor 252716 — 3/0 Cable, 3/8" Fastener, 2-Pack. For a full range of lug sizes, see the Ancor 255101 Marine Grade Tinned Copper Battery Lug Kit — 100-Piece Assortment.
Parts Desk Insights
Reach for this lug when you’re terminating 3/0 AWG cable to a battery or bus bar with a 1/2" stud — common on Group 31, 8D, and 4D batteries, as well as heavy-duty marine bus bars and large inverter terminals. The 1/2" hole is the key differentiator from the 252716; if your stud is larger than 3/8", this is the correct part. Ideal for high-draw systems like windlasses, bow thrusters, and large inverter banks where connection quality directly affects performance and safety.
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.