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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2PCS 4-Way Quick Release Disconnect Battery Terminal Connectors, Positive Negative Cable Ends for SAE/JIS Type A Posts

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

⚡tinned copper for max conductivity

🔌4-way multi-cable connection

🛡️superior corrosion resistance

₩17865

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

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Description

⚡ Power Up Your Ride with Effortless Multi-Cable Mastery!

QUAD PORT POWER HUB - Connect up to 4 cables seamlessly for ultimate battery versatility.
PREMIUM TINNED COPPER - Ensures minimal voltage loss and peak electrical performance.
POLARITY PERFECT DESIGN - Clearly marked + and - terminals eliminate installation guesswork.
CORROSION RESISTANT ARMOR - Built to withstand harsh environments and extend terminal life.
UNIVERSAL VEHICLE COMPATIBILITY - Fits SAE/JIS Type A posts on cars, trucks, boats, RVs, and more.

The ZONBANG 2PCS 4-Way Quick Release Battery Terminal Connectors deliver robust, corrosion-resistant tinned copper construction with four connection posts for versatile multi-cable setups. Designed for SAE/JIS Type A battery posts, these quick disconnect terminals simplify installation with clear polarity markings and come complete with anti-corrosion washers and an allen wrench. Ideal for a wide range of vehicles including cars, trucks, boats, and RVs, they ensure reliable, high-conductivity power delivery in demanding conditions.

Specifications

ASIN	B09M244CBP
Actuator Type	Quick Disconnect
Best Sellers Rank	#66,748 in Automotive ( See Top 100 in Automotive ) #238 in Automotive Replacement Battery Terminals & Ends
Brand Name	ZONBANG
Circuit Type	4-way
Color	Tinned Copper
Compatible Devices	Cars, Trucks, Tractors, Boats, Trailers, Winches, Jeeps, RVs, Vans, Caravans
Compatible with Vehicle Type	Cars, Trucks, Vans, Jeeps, RVs, Boats, Trailers, Winches, Tractors, Caravans
Connectivity Protocol	X-10
Connector Type	Quick Disconnect
Contact Material	Tinned Copper
Contact Type	Normally Open
Control Method	Touch
Controller Type	Ring
Customer Reviews	4.4 4.4 out of 5 stars (553)
International Protection Rating	IP54
Item Dimensions	4.9 x 3.35 x 0.71 inches
Item Weight	9.07 g
Manufacturer	ZONBANG
Material Type	Copper
Model	BTE-2
Mounting Type	Handlebar Mount
Number of Items	2
Number of Positions	2
Operation Mode	manual
Part Number	BTE-2
Specification Met	Ip54
Switch Type	Disconnect Switch
Terminal	Quick Disconnect Battery Terminal
UPC	661918716423
Unit Count	2 Count

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