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

Product ID: 228580791

Details

Color
1 Set
Connector Type
Top Post
Contact Material
Brass
Insulation Material
Non-Insulated
Terminal
Post Terminal

⚡Supports 12V standard top post batteries

🔩Brass construction for durability

⏱️Tool-free, direct-fit installation

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R426

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Ampper Terminals: Power Up with Precision and Speed!

VERSATILE CONNECTIVITY - Perfect for battery extension, parallel setups, and grounding—power your adventures without compromise.
CLEARLY MARKED POLARITY - Positive (+) and Negative (-) terminals are laser-etched for foolproof, error-free connections.
EFFORTLESS INSTALLATION - Flange nuts and direct-fit design eliminate modifications—get connected in minutes, not hours.
UNIVERSAL COMPATIBILITY - Fits standard 19mm positive and 17mm negative top post batteries across cars, boats, RVs, and more.
CORROSION RESISTANT BRASS BUILD - Engineered for long-lasting strength and reliability in marine and automotive environments.

Ampper Brass Battery Terminal Connectors deliver a robust, corrosion-resistant solution for 12V top post batteries. Designed with precision-marked polarity and a direct-fit installation system, these connectors ensure quick, secure connections for cars, boats, RVs, and marine vehicles. Engineered for durability and versatility, they support battery extension, parallel, and ground connections, making them an essential upgrade for any power setup.

Specifications

ASIN	B0882PCBDC
Best Sellers Rank	#14,138 in Automotive ( See Top 100 in Automotive ) #39 in Automotive Replacement Battery Terminals & Ends
Brand Name	Ampper
Color	1 Set
Connector Gender	Male
Connector Type	Top Post Battery Terminal
Contact Material	Brass
Customer Reviews	4.5 4.5 out of 5 stars (1,279)
Insulation Material Type	Non-Insulated
Item Dimensions L x W x H	4"L x 0.6"W x 2.5"H
Item Weight	4 Ounces
Manufacturer	Ampper
Material Type	Brass
Maximum Voltage	12 Volts
Model	Am-CBT0805
Number of Items	1
Part Number	Am-CBT0805
Terminal	Post Terminal
Unit Count	1.0 Count

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R426

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

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