Are these made of copper or bronze? The ad says copper, but they look like bronze. Copper would immediately corrode to a green color...

Not made of copper. Their value in weight would cost more in scrap than this price. I would say it feels like a yellow dyed piece of aluminum. The cheapest yellow alloy metal there is? That is what this is probably made from. Dont worry about corrosion. But if you did have copper terminals, a green discoloration would be a side effect worth tollerating.

What size should i get for a 12-volt battery for a car? (2007 mitsubishi galant w/3.6l v6)

Don't worry about size anything that is a 12 volt they will fit. Just make sure the negative and positive are thick enough to go to the main feed

What thread are the screws?

Hello, the diameter of the screw is 5.8mm.

sae or metric hardware? 1/4 20?

The battery terminal connectors fit for SAE Terminal Post. The range of the application of the negative pole is 0.63~0.69 in, the positive pole is 0.69~0.75 in, you can see the size image for more detailed information.

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Battery Terminal Connectors

Product ID: 418273840

Details

Brand
ZONBANG
Circuit Type
4-way
Connector Type
Quick
Contact Type
Normally Open
Item dimensions L x W x H
4.9 x 3.35 x
Material
Copper

⚡Superior conductivity & low voltage loss

🔌4-way multi-cable connection

🛡️Corrosion-resistant tinned copper

€ 22.23

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power up your ride with effortless multi-cable control!

BUILT TO LAST - Premium tinned copper resists corrosion and ensures stable electrical flow, reducing voltage distortion.
ALL INCLUSIVE KIT - Includes 2 terminals, 4 wire connectors, cleaning brushes, anti-corrosion washers, and allen wrench—ready to install out of the box.
QUAD PORT POWER HUB - Connect up to 4 cables seamlessly with 4-way terminal design for SAE/JIS Type A batteries.
CLEAR POLARITY MARKINGS - Positive (+) and negative (-) signs eliminate guesswork, preventing costly installation errors.
EFFORTLESS QUICK RELEASE - Snap on/off terminals save time on maintenance and upgrades—no more fumbling with wires.

ZONBANG’s 2PCS 4-Way Quick Release Battery Terminal Connectors offer a durable, corrosion-resistant solution for SAE/JIS Type A car batteries. Designed for multiple cable connections, these tinned copper terminals reduce voltage loss and simplify maintenance with clear polarity markings and a comprehensive installation kit, perfect for cars, trucks, RVs, boats, and more.

Specifications

ASIN	B0BYJY1VVZ
Best Sellers Rank	#92,052 in Automotive ( See Top 100 in Automotive ) #325 in Automotive Replacement Battery Terminals & Ends
Brand	ZONBANG
Customer Reviews	4.1 4.1 out of 5 stars (64)
Date First Available	March 18, 2023
Exterior	Metallic Finish
Is Discontinued By Manufacturer	No
Item Weight	10.5 ounces
Manufacturer	ZONBANG
Manufacturer Part Number	2-S-BRUSH
Product Dimensions	4.5 x 1.7 x 3.5 inches

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TrustScore 4.5 | 7,300+ reviews

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