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!

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

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Prime-Line SP 9712 Compression Spring, Spring Steel Construction, Nickel-Plated Finish, 0.051 GA x 9/16 In. x 3 In. (2 Pack)

Product ID: 344650826

Details

Auto part position
Outside
Brand
PRIME-LINE
Colour
Nickel
Extended length
3 Inches
Material
Alloy Steel

✨Nickel-plated corrosion resistance

⚙️3 in length for versatile applications

🛠️0.051 in wire gauge for precise tension

Description

⚙️ Spring into action with strength and style!

TRUSTED PERFORMANCE - Highly rated with 4.6 stars and proven dependability across automotive, marine, and home projects.
SLEEK DURABLE FINISH - Nickel plating ensures long-lasting corrosion resistance for indoor and outdoor use.
EFFORTLESS INSTALLATION - Designed for quick setup with minimal tools, perfect for busy professionals and DIYers alike.
VERSATILE FIT FUNCTION - 9/16 inch diameter and 3 inch length fit a wide range of appliances, tools, and mechanical devices.
PRECISION ENGINEERED STRENGTH - Tempered spring steel delivers reliable compression with a 19.9 lbs max load capacity.

The Prime-Line SP 9712 Compression Spring is a premium, nickel-plated spring steel component designed for diverse professional and household uses. Measuring 0.051 inch wire gauge by 9/16 inch diameter and 3 inches in length, it supports up to 19.9 lbs of load with excellent corrosion resistance and easy installation, making it a must-have for millennial managers who demand durability and versatility in their toolkit.

Specifications

ASIN	B007X4X7QA
Auto Part Position	Outside
Auto part position	Outside
Best Sellers Rank	#97,528 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 in Garage Door Springs & Wires
Brand	PRIME-LINE
Brand Name	PRIME-LINE
Color	Nickel
Colour	Nickel
Compressed Length	0.95 Inches
Customer Reviews	4.6 out of 5 stars 141 Reviews
Extended Length	3 Inches
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
Number of Packs	1
Part Number	SP 9712
UPC	049793097125
Unit Count	1 Count
Unit count	1 Count
Warranty Description	Goods are warranted against manufacturing defects for 1 year.

Reviews

G**E

Springs for oxygen concentrator hose, not the kink

Springs for the airline coming out of the concentrator. Portable came on time. Works well right? Size

4.10.2026

J**S

Spring

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

23.06.2026

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

C**B

Spring

As advertised

18.05.2023

A**M

Good for mini X pilot controls

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

22.09.2025

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