are there shorting bars for these things?

Depends on what you mean by shorting bars?

For anyone who has secured the terminal strip to a surface, what size/length of fastener did you use?

You can use #4 3/4 inch screws.

Will these work w fat 12 AWG stranded wire for 12v outdoor lighting, or is this only for smaller wire?

No. The largest wire this will take is 14A. 12Ga wire is 3+mm, this is 2.5mm. Of course with stranded you could always over twist or cut a few strands of to jam it in. I wouldn’t recommend it. The other issue is these are rated for 10a. If you are using 12ga wire near capacity you could melt them. And finally, out-door means corrosion is an issue. I would suggest an automotive or wet/damp rated block instead of these. I use these successfully for a dry location outdoor block for sprinkler valves. After a few years I throw them away and replace because they corrode and don’t loosen any more.

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Weewooday 20 Pieces Terminal Strip 12-Position Dual Row Wire Block

Product ID: 311235140

Details

Brand
Weewooday
Color
white
Connector Type
Screw
Current Rating
10 A
Material
Copper
Mounting Type
Panel Mount

⚡Supports up to 10A current at 380V voltage

🔥Flame-retardant PP shell withstands -40°C to 150°C

🔧12-position dual row with easy screw terminal installation

€ 22.00

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Connect with confidence—power your projects like a pro!

SAFE SECURE - Ensures stable wire contact and prevents accidental terminal exposure
CUSTOMIZABLE FIT - Easily cut and resize strips to perfectly match your project needs
EFFORTLESS SETUP - No welding needed—just strip, insert, and tighten screws for instant wiring
FIREPROOF DURABLE - Flame-retardant, corrosion-resistant shell built to last through extreme temps
POWERFUL PERFORMANCE - Handles 10A current and 380V voltage for reliable electrical connections

The Weewooday 20 Pieces Terminal Strips set features 12-position dual row screw terminals with a flame-retardant PP shell rated for -40°C to 150°C. Designed for up to 10A current and 380V voltage, these copper and zinc alloy connectors offer corrosion resistance, easy installation without welding, and customizable sizing—ideal for home, lighting, and electrical maintenance projects.

Specifications

ASIN	B08V4W637Q
Best Sellers Rank	#14,364 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #26 in Terminal Blocks
Brand Name	Weewooday
Color	white
Connector Type	Screw
Current Rating	10 A
Customer Reviews	4.6 4.6 out of 5 stars (752)
Item Dimensions W x H	7.87"W x 0.59"H
Manufacturer	Weewooday
Material Type	Copper
Model	Weewooday-13102
Mounting Type	Panel Mount
Number Of Contacts	12
Number Of Poles	12
Number of Items	20
Number of Positions	12
Part Number	Weewooday-13102
Upper Temperature Rating	150 °C
Voltage	380 volts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

1 month ago

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The product quality is outstanding. Exactly what I needed for my work.

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€ 22.00

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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