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๐ง Upgrade your window game with smooth style and lasting strength!
The Prime-Line H 3966 Spline Socket Crank Handle offers a smooth 360-degree operation with durable diecast zinc construction and a stone finish. Designed for 3/8 inch spindles, it fits most older Andersen casement windows and installs easily with a Phillips screwdriver. This single-pack replacement handle combines lasting quality with effortless functionality, making it the go-to choice for professional-grade window repairs.



























| Additional Features | Durable, Easy to Install |
| Asin | B000KKTFGK |
| Best Sellers Rank | #40,626 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #47 in Window Locks & Latches |
| Brand Name | PRIME-LINE |
| Color | Stone |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,336) 4.4 out of 5 stars |
| Exterior Finish | Stone |
| Finish Types | Stone |
| Global Trade Identification Number | 00049793039668 |
| Hand Orientation | Right |
| Handle Attachment Mechanism | screw |
| Handle Compatibility | Model Specific, Size Specific |
| Handle Material | Zinc |
| Handle Type | Crank |
| Included Components | 1 crank handle |
| Item Depth | 0.62 inches |
| Item Dimensions L X W | 3.12"L x 0.62"W |
| Item Type Name | Crank Handle |
| Item Weight | 1.6 ounces |
| Manufacturer | Prime-Line Products |
| Manufacturer Part Number | H 3966 |
| Manufacturer Warranty Description | 1 year limited |
| Material Type | Zinc |
| Model Number | H 3966 |
| Number Of Items | 1 |
| Projection Distance | 3.13 inches |
| Shape | Round |
| Specific Uses For Product | Window |
| Style Name | Set Screw |
| Unit Count | 1 Count |
| Upc | 049793039668 |
User
As expected
Works as expected. Ordered two, but had an issue with one not fitting properly. They replaced it immediately with no further cost to me.
User
Exact replacement
Exact replacement handle for Anderson casement for me.
User
Great and expensive replacement color matched.
We got these free windows, and one of them didn't have a window crank. Ambition windows would clean them all up and put them in our greenhouse for a building. And it worked perfect. There was some shavings up inside. I had to clean out with tweezers Once I set it on the window, it didn't go down all the way. I took a rubber Mallet and tapped on it, went down and fit perfect. Since I don't want it to come off. the color match perfect.
User
Ok, but flashing was not removed from inside of gear casting.
Product seemed nice at first, nice heft to it, good paint, knob moved easily. However, flashing from the casting process of the gear had not been cleaned properly, leaving debris and oversized teeth inside the 3/8โ fitting. Because of this, it did not fit on my crank gear. This was easily remedied with a small screw driver and a properly sized grinding stone on a Dremel tool, and it fits now and works well.
User
Great transaction!
Matched my window perfectly. Came on time and hassle free. Thank you!
User
Windows cranks
I bought these. They were not the exact same ones that I had they worked for a little while then came off not sure if itโs because theyโre not the exact match or if itโs the quality.
User
Great fit.
Cranks fit great and matched our screen frames perfectly. Great price for a good product.
User
Took jiggling to fit
Our Andersen window crank arm snapped off. I ordered this replacement and had trouble at first getting the handle all the way on. I looked into the handle and some of the metal channels had leftover pieces blocking the channels that were cast to fit the window part. I almost gave up on the handle but then decided to just try tapping/pounding into place (no tools). It went right on and the set screw was fine. The crank arm works great. The extra effort helped me get another arm that was loose, back on. Still rating 5 stars since it works like itโs supposed to work. Just a little painful to install.
User
Perfect
This was a perfect fit for the patio door. Cost a lot less than calling someone in to replace the handle.
User
Amazing
Amazing, there is a little screw that allows you to adjust to the size of the window operator,
User
Not functional due to poor manufacturing
The hole for the threaded screw has a burr (hole drilling leftover) that ENTIRELY prevents product from being inserted onto the mating window spline.2 handles came in this package, both had this problem. Really, factory? This is such a basic error, super frustrating.
Trustpilot
3 days ago
4 days ago