How many come per order? The title says 2 pack but the 9712 say they're sold in packs of 4

There are two pieces in one package.

What is the max load of this spring?

the maximum safe load is 19.90 lbs..

What is the spring constant in lb/in?

Robert! This spring was used to on a commerical roll-up door to keep tension on the rollers against the guide rails. Works good!

Prime Line Sp 9712 Compression Spring Spring Steel Construction Nickel

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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Description

🔧 Elevate your projects with springs that perform as hard as you do!

MULTI USE MASTERY - Ideal for appliances, automotive, marine, toys, and professional mechanical devices—be ready for anything.
PRECISION FIT FORCE - 9/16 inch diameter and 3 inch length deliver consistent, strong spring rates for diverse applications.
EFFORTLESS INSTALLATION - Designed for quick setup with minimal tools, saving you time on every project.
ENGINEERED FOR ENDURANCE - Tempered spring steel construction ensures long-lasting resilience under pressure.
CORROSION RESISTANT SHINE - Nickel-plated finish protects against rust, perfect for indoor and outdoor use.

The Prime-Line SP 9712 Compression Spring is a durable, nickel-plated spring steel component measuring 9/16 inch in diameter, 3 inches in length, and 0.051 inch wire gauge. Rated for a maximum safe load of 19.9 lbs and designed with flat end coils for strong spring rates, it offers corrosion resistance and versatility across household, automotive, and professional applications. Sold in a convenient 2-pack, these springs combine precision engineering with easy installation to keep your mechanical projects running smoothly.

Specifications

ASIN	B007X4X7QA
Auto Part Position	Outside
Best Sellers Rank	#69,721 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #69 in Mechanical Compression Springs
Brand	PRIME-LINE
Brand Name	PRIME-LINE
Color	Nickel
Customer Reviews	4.6 out of 5 stars 139 Reviews
Extended Length	3 inches
Global Trade Identification Number	00049793097125
Included Components	Prime-Line Products SP 9712 Compression Spring with .054 Diameter, 9/16-Inch x 3-Inch,(Pack of 2)
Item Type Name	Prime-Line Products SP 9712 Compression Spring with .054 Diameter, 9/16-Inch x 3-Inch,(Pack of 2)
Item Weight	1.44 ounces
Manufacturer	Prime-Line Products
Material	Alloy Steel
Material Type	Alloy Steel
Model	SP 9712
Number of Items	2
Part Number	SP 9712
UPC	049793097125
Unit Count	1 Count
Warranty Description	Goods are warranted against manufacturing defects for 1 year.

Reviews

J**O

Great Compression Spring for Another Purpose.

Arrived on time and great use for workshop. Not used for engine. Spring was the right size and compression strength as specified.

10.12.2025

A**M

Good for mini X pilot controls

Used for mini X pilot Controls. Just measure and cut, perfect tension

22.09.2025

C**B

Spring

As advertised

18.05.2023

R**A

spring

did not use for what ended up for used it for my kids gokart and worked out great it had one of those silly screendoor springs for the gas pedal didnt work out to well

23.06.2025

J**S

Spring

Bought this spring for my motorcycle seat. This spring did the job for my project.

23.06.2026

G**E

Works well

Works for what I needed it to

7.11.2025

T**K

Good springs, exactly as described

13.08.2025

C**R

Mini x

Good for mini x

7.11.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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1573 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Anjali K.

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