Attwood Polarized Wing Nut Battery Terminals 11901-4, Lead Terminals with Cadmium-Plated Bolts

The Attwood 11901-4 Polarized/Wing Nut Battery Terminals are lead battery terminal clamps designed for marine 12-volt electrical systems. Each terminal is fitted with a wing nut and a cadmium-plated bolt, allowing the connection to be tightened and removed by hand without tools, which makes them convenient for routine battery servicing, seasonal winterizing, or swapping accessories on board. The clamps are polarized: each one is stamped with a negative (-) or positive (+) sign so the correct polarity is clear at a glance, reducing the risk of a reversed connection when wiring or reconnecting a battery.

Constructed from lead for reliable electrical conductivity and corrosion resistance in a marine environment, the terminals are sold as a matched negative and positive set. The product is available in bulk packaging and in aftermarket packaging, and it carries a California Proposition 65 warning.

Specifications

• Brand: Attwood
• Manufacturer Part Number: 11901-4
• Product Type: Battery Terminals
• Terminal Material: Lead
• Bolt Material: Cadmium-plated steel
• Terminal Style: Polarized (wing nut)
• Polarity Marking: Stamped negative (-) and positive (+) signs
• Set Includes: Negative and positive terminals
• Packaging: Bulk packaging and aftermarket packaging available
• California Proposition 65 Warning: Yes

Frequently Asked Questions

What is the Attwood 11901-4 battery terminal set made of? The Attwood 11901-4 terminals are made of lead, with cadmium-plated bolts securing the wing nut connection.

Do these terminals require tools to install? No tools are needed for routine connect/disconnect: the Attwood 11901-4 terminals use wing nuts on cadmium-plated bolts so they can be tightened and loosened by hand.

How do I know which terminal is positive and which is negative? Each clamp in the Attwood 11901-4 set is stamped with a negative (-) or positive (+) sign, so polarity is marked directly on the terminal.

Does the 11901-4 set include both positive and negative terminals? Yes, the Attwood 11901-4 is sold as a set with one negative and one positive terminal.

What does 'polarized' mean for this battery terminal? Polarized means each Attwood 11901-4 clamp is marked with its polarity (+ or -), which helps prevent connecting the battery cable to the wrong terminal.

Is there a Proposition 65 warning for this product? Yes, the Attwood 11901-4 battery terminals carry a California Proposition 65 warning.

What packaging options are available for the 11901-4 terminals? The Attwood 11901-4 is available in bulk packaging as well as aftermarket packaging.

What type of bolt is used on the wing nut terminal? A cadmium-plated bolt is used on each Attwood 11901-4 wing nut terminal to secure the cable connection.

Are these terminals suitable for marine 12-volt battery systems? Yes, the Attwood 11901-4 lead wing nut terminals are designed for marine battery connections.

Can I remove and reattach these terminals repeatedly? Yes, the wing nut design of the Attwood 11901-4 allows repeated hand-tightened removal and reattachment, useful for seasonal battery servicing.