Do these have any lead in them and where are they made?

I think I purchased these battery terminal approx a year ago for use on my 31 hp Yanmar tractor and I did take a look at them approx a month ago and they still looked brand new. I do not know if they have any lead in them. They appear to be all brass with the exception of the clamp fasteners and the post and it's fastener. I am happy with the connectors I received and they seemed to be better quality than the similar connectors I've seen in "big box" stores

can the stud to contact the battery cable be removed and/or replaced?

Yes, the "stud" is just a normal hex bolt. In fact there is nothing holding the hex part of the bolt from dropping by gravity. But the hex part is inside a hex slot so no need to have 2 tools to tighten it. Note also the stud size is 10mm so be sure your cable lug size is big enough. The nut's size should be compatible with the 5/16" stud nut so no need for another size socket to tighten the cable.

Is the stud made of steel or is it stainless steel?

I don’t think they are stainless. Zinc plated mild steel probably. I’ve had these on my truck for over two years and they still look like new. Very happy and would buy again. Hope this helps.

Is the negative terminal opening smaller than the positive?

Yes, because the battery negative post is small than battery positive post.

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Brass Battery Terminal Connectors, Top Post Battery Terminals Connector Battery Cable Ends for Marine Car Boat RV Vehicles (1 Pair)

Brass Battery Terminal Connectors, Top Post Battery Terminals Connector Battery Cable Ends for Marine Car Boat RV Vehicles (1 Pair)

Product ID: 440017154

Details

Colour
1 Set
Connector Type
Clamp
Contact Material
Brass
Insulation Material
Non-Insulated
Terminal
Clamp Terminal

⚡Supports 12V standard top post batteries

🔩Brass construction for durability

🛠️Tool-free, direct-fit installation

18227CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power Up Your Ride with Ampper’s Brass Battery Terminals – Built to Last, Designed to Impress!

VERSATILE CONNECTIVITY - Ideal for battery extension, parallel connections, and grounding, empowering you to customize your power setup.
CLEARLY MARKED POLARITY - Positive (+) and Negative (-) terminals are laser-marked for foolproof, error-free connections every time.
EFFORTLESS INSTALLATION - No modifications needed—flange nuts and clamp design make setup quick and hassle-free, saving you time.
UNIVERSAL COMPATIBILITY - Fits standard top post batteries with 19mm positive and 17mm negative posts—perfect for cars, boats, and RVs.
CORROSION RESISTANT BRASS BUILD - Engineered for long-lasting strength and reliability in marine, automotive, and RV environments.

Ampper Brass Battery Terminal Connectors offer a robust, corrosion-resistant solution for standard 12V top post batteries. Crafted from durable brass with clearly marked polarity, these connectors ensure quick, tool-free installation and universal compatibility across cars, boats, and RVs. Perfect for enhancing battery connections with strength and reliability.

Specifications

ASIN	B0882PCBDC
Best Sellers Rank	#75,232 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #44 in Terminals (Car & Motorbike)
Brand Name	Ampper
Colour	1 Set
Connector Gender	Male
Connector Type	Clamp
Contact Material	Brass
Customer Reviews	4.5 out of 5 stars 1,221 Reviews
Insulation Material	Non-Insulated
Insulation Material Type	Non-Insulated
Item Dimensions L x W x H	10.2L x 1.5W x 6.4H Centimeters
Item Weight	4 Ounces
Manufacturer	Ampper
Material	Brass
Material Type	Brass
Maximum Voltage	12 Volts
Model Number	Am-CBT0805
Number of Items	1
Part Number	Am-CBT0805
Terminal	Clamp Terminal
Terminal Type	Clamp Terminal
Unit Count	1.0 Count

Reviews

H**S

Good but too hard

Heavy material, good for price comparatively

16.04.2026

T**O

Bon produit

Utiliser pour changer cosses hs sur suzuki swift 3.parfait

10.09.2024

N**.

Perfect

They are Perfect 👌

21.12.2025

A**I

Works all good

Very nice solid and sturdy. Just the bolt was too thick for my camry 2000 connector plugs. Solved it my making the connection holes bigger so that the bolt can pass through. But over ll very happy.

3.09.2025

D**F

Decent one

Dows what it is supposed to do. Comes with a circular "pad" to protect the terminal

16.10.2025

V**S

Thicc

These are thick and good quality. Things to note: the attaching bolt and nut included are M10, but a M8 bolt (which I required on my car) fits in perfect still.

6.05.2025

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