Are these self opening? From the picture they look like they are self opening and not self closing?

I used these on the inside of bifold doors. So the hinge wants to open up flat which in my scenario actually closes the door. If you flip the hinge and mount it it say on a box with a lid, you would need a hook to hold the lid shut because the springs would want to make the door fly open.

What is the distance hole to hole?

The hole to hole distance is 25mm.

What is the spring rate in terms of torque per degree of rotation? Need to decide how many are needed to lift my lid.

These hinges clothes on themselves I don’t believe you can mount them so that they would be used to open something on the other hand I’m not saying you can’t I haven’t thought about it but I can’t begin to tell you about torque all I know is that two hinges will close a small wooden door with no problem. They don’t cost that much to begin with so why don’t you buy a half dozen and experiment a little bit and answer your own question anyway good luck by

What us the clamping force of the hinge? Can it be used to close a 2 pound door?

It can be used to close a 2 pound door.

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Spring Hinges Self Opening Hinge 2" Long - 4pcs

Spring Hinges Self Opening Hinge 2" Long - 4pcs

Product ID: 119238205

Details

Brand
Rannb
Finish Type
Brushed
Hole Count
4
Manufacturer
Rannb
Material
Stainless
Mounting Type
Door Mount

🔩4-pack for multiple doors

🚪Self-opening spring action

🛡️304 stainless steel rust resistance

₱1303

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Description

🚪 Elevate your space with hinges that open doors to effortless style and durability!

BUILT TO ENDURE - Premium 304 stainless steel ensures superior rust resistance and long-lasting durability
PERFECT FIT PRECISION - Compact 2" length with 1mm leaf thickness for seamless installation on standard doors
EFFORTLESS DOOR MOVEMENT - Self-opening spring hinge design for smooth, hands-free door operation
COMPLETE INSTALLATION KIT - Includes screws with 5mm diameter holes for quick, secure mounting
TRUSTED QUALITY SERVICE - Rannb’s rigorous testing and customer-first approach guarantee reliable performance every time

The Rannb Spring Hinge Self Opening Hinge 2" is a premium pack of 4 stainless steel door hinges featuring a self-opening spring mechanism. Crafted from rust-resistant 304 stainless steel with precise dimensions for easy installation, these hinges deliver smooth, reliable door operation and long-lasting performance trusted by professionals and DIY enthusiasts alike.

Specifications

ASIN	B07NYN9FNQ
Best Sellers Rank	#135,068 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #411 in Door Hinges
Brand	Rannb
Brand Name	Rannb
Color	Silver
Customer Reviews	4.2 out of 5 stars 572 Reviews
Finish Type	Brushed
Finish Types	Brushed
Hole Count	4
Item Dimensions L x W	2"L x 1.44"W
Manufacturer	Rannb
Manufacturer Part Number	wby1143
Material	Stainless Steel
Material Type	Stainless Steel
Model Number	wby1143
Mounting Type	Door Mount
Product Dimensions	2"L x 1.44"W
UPC	747130080662
Unit Count	4 Count

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₱1303

Duties & taxes included

In stock

Sold byAmazon PhilippinesDelivered 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 Philippines.

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TrustScore 4.5 | 7,300+ reviews

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