Projecta BT642H-N1 Negative Heavy Duty Bolt Brass Battery Terminal, Blister of 1

Quick answer

The Projecta BT642H-N1 is the Negative Heavy Duty Bolt Brass Battery Terminal, Blister of 1. One negative heavy duty bolt terminal in a blister pack, the BT642H-N1 is the one to grab when a single clamp has corroded or cracked on the negative post.

It is the heavy duty version, built for the bigger cable sizes used on 4WD, truck and dual battery work. Marked negative, it is sized for the negative post; the two are not interchangeable.

Give the post a clean first; a dirty post will undo a good terminal. Stud size is listed as 3/8 inch or 10 mm.

The bolt style holds ring lugs firmly with a nut, the usual choice where vibration is a concern. Forged brass conducts well and copes with the heat and vibration of an engine bay.

Check the terminal again after the first week, as new cable can settle under the clamp. After fitting, a thin smear of terminal grease or spray protector slows corrosion. Keep the positive covered so a spanner cannot bridge it to the body. See the rest of the <a href="https://frankiesautoelectrics.com.au/collections/projecta">Projecta range</a> for matching parts.

Specifications

• Post: negative
• Style: heavy duty bolt
• Pack: a single terminal
• Stud: 3/8 inch or 10 mm
• Material: forged brass

Warranty

This comes with the manufacturer's warranty through the Australian distributor. See the manufacturer's terms for details, plus our guarantees under the Australian Consumer Law.

FAQ

For a customer job, do I get a single terminal or a set with the BT642H-N1?

One negative heavy duty bolt terminal, packed on its own.

Fitting it myself, will 10 mm ring lugs fit on the BT642H-N1?

The stud is 3/8 inch or 10 mm. Use lugs with a hole to match.

Just checking, will a negative heavy duty bolt terminal fit the opposite post?

No. Positive posts are slightly larger than negative ones, so this negative terminal is sized for the negative post only.

For a customer job, should I put grease or spray on the BT642H-N1 once it is on the negative post?

Yes. Once it is tight, a thin coat of terminal grease or protector spray over the joint slows corrosion.

Quick question: can I overtighten a heavy duty bolt terminal like the BT642H-N1?

Tighten until it cannot be twisted on the post by hand. Going further risks damaging the post or the terminal.