Sea-Dog Terminal Post 3/8-16, Nylon/Stainless Steel with ABYC Cover - 426810-1

The Sea-Dog Terminal Post 426810-1 is a 3/8-16 stud terminal built for marine battery and buss connections where a secure, corrosion-resistant post is required. It is constructed of injection molded nylon paired with a stainless steel terminal, giving it the strength to handle heavy electrical loads while resisting the corrosive effects of a marine environment. The post is rated for a maximum of 48VDC and 150A, making it suitable for a range of 12V, 24V, and 48V DC systems on board.

Each terminal post ships with a cover that allows it to meet ABYC and USCG requirements for terminal protection, helping keep the connection safe from accidental contact and corrosion. Installation is straightforward: the post mounts using four #10 RH fasteners (fasteners not included), so it can be panel- or bulkhead-mounted into an existing electrical setup. Its compact footprint keeps it easy to fit into tight battery boxes, distribution panels, or buss bar assemblies.

This terminal post is sold in a standard pack of 5 and is one of several thread sizes in the same Sea-Dog terminal post series, so boat owners and marine electricians can match the stud size to their existing hardware.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 426810-1
• Thread Size: 3/8-16
• Fastener: #10 RH (installs with four #10 RH fasteners, not included)
• Material: Nylon / Stainless Steel
• Maximum Voltage: 48 VDC
• Maximum Current: 150 amps
• Dimension A: 3-3/4 inches
• Dimension B: 1-11/16 inches
• Dimension C: 1-5/8 inches
• Dimension D: 1-5/16 inches
• Dimension E: 2-3/16 inches
• Weight: 0.11 pounds
• Standard Pack: 5 each
• UPC: 035514427609
• Compliance: Meets ABYC/USCG requirements (includes terminal post cover)

Frequently Asked Questions

What thread size is the Sea-Dog 426810-1 terminal post? It has a 3/8-16 stud thread, which is the largest of the three plain terminal post sizes in this Sea-Dog series (the others use 1/4-20 and 5/16-18 studs).

What is this terminal post made of? The 426810-1 is built from injection molded nylon combined with a stainless steel terminal, giving it corrosion resistance for marine electrical use.

Does the terminal post come with a cover? Yes, the 426810-1 includes a cover so the installed terminal meets ABYC and USCG requirements for terminal protection.

What voltage and current is this terminal post rated for? Sea-Dog rates the 426810-1 for a maximum of 48VDC and 150A, covering typical 12V, 24V, and 48V DC marine electrical systems.

How is the 426810-1 terminal post installed? It installs with four #10 RH fasteners, which are not included, allowing it to be mounted to a panel, bulkhead, or buss bar assembly.

What are the dimensions of the Sea-Dog 426810-1? The terminal post measures 3-3/4 inches by 1-11/16 inches by 1-5/8 inches by 1-5/16 inches by 2-3/16 inches across its mounting profile (dimensions A through E).

How much does the 426810-1 terminal post weigh? The Sea-Dog 426810-1 terminal post weighs 0.11 pounds.

How many terminal posts come in a pack? The 426810-1 is sold in a standard pack of 5 units.

What is the difference between the 426810-1 and the 426808-1 or 426806-1? All three are the same Sea-Dog terminal post design with a cover, but they differ in stud thread: 426806-1 uses a 1/4-20 stud, 426808-1 uses a 5/16-18 stud, and 426810-1 uses the larger 3/8-16 stud.

Is a replacement cover available if the original terminal post cover is lost or damaged? Yes, Sea-Dog offers a standalone terminal post cover (426800) that fits this style of terminal post.

What is the UPC for the Sea-Dog 426810-1 terminal post? The UPC for the Sea-Dog 426810-1 terminal post is 035514427609.