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🔧 Elevate your projects with the spring that works as hard as you do!
The Prime-Line SP 9677 Extension Spring is a durable, nickel-plated spring steel component designed for heavy-duty applications. Measuring 1-1/4 inches in diameter and 10 inches in length, it supports a maximum safe load of 73.7 lbs with a 6.18-inch deflection. Its single loop open ends enable quick installation, while the corrosion-resistant finish ensures longevity indoors and out—ideal for professionals and DIYers seeking dependable performance across appliances, automotive, marine, and mechanical devices.




























| ASIN | B008RFGBYO |
| Assembled Diameter | 1.25 Inches |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #100,658 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #52 in Garage Door Springs & Wires #22,577 in Hardware |
| Color | Nickel |
| Customer Reviews | 4.6 4.6 out of 5 stars (171) |
| Cutting Diameter | 1.25 Inches |
| Date First Available | September 9, 2012 |
| Finish | Nickel |
| Included Components | Springs |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 14.9 ounces |
| Item model number | SP 9677 |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Material | Alloy Steel |
| Measurement System | Inch, wire_size |
| Part Number | SP 9677 |
| Size | 1-1/4 in. x 10 in. |
| Warranty Description | Goods are warranted against manufacturing defects for 1 year. |
H**O
It worked
Worked as a replacement for pull down attic ladder spring
T**J
Good spring
It's a spring. A good, quality spring. It springs as advertised.
A**S
Right tention
Better than shopping at the big box store. I added these springs to the washing machine tub for added support for spin balance cycle. Seemed to help with those heavy loads. These had about the right tension 6.7 lbs.
M**G
Stiff spring
Very stiff spring . Could hardly stretch by hand.wanted one that had a little stretch for hanging a cable for outdoor lights
T**3
Good spring
Matched up to what I had
J**T
Strength
Worked great for what we needed it for
J**.
Fixed my attic stairs
Both attic stairs in my over 25 year home have been sagging. I was unable to identify the manufacturer of my stairs. With the attic closed, the springs were loose and rusty. They measured between 11 and 11 1/2" when closed. The springs when removed were not all the same length. I did purchase some longer ring eye bolt hooks to make up for this difference. These were easy to swap with the old hooks when the original spring was removed. Installation keys. One end of the spring needs to be partially straightened so it can pass into the opening on the end of the stairs. I used a board to hold up the attic stairs when closed so it would not lower when the old spring was removed. I used a ratchet strap to stretch the new spring so I could engage the hook.
L**Y
works good
Purchased this as one of many components also from Amazon to be used in a café light installation in my back yard. The finished project is awesome. It was nice to be able to find everything I needed in one place.
Trustpilot
2 weeks ago
4 days ago