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🔄 Fold, Fit, and Forget – The Ultimate Crank Handle Upgrade
The Prime-Line H 3962 is a modern, diecast alloy steel folding crank handle designed for universal compatibility with most casement windows. Featuring a compact foldable design to avoid window blind obstruction, it extends 2.75 inches for comfortable operation. Its versatile adapter system and secure set screw attachment make installation quick and reliable, backed by a 1-year warranty for peace of mind.




























| ASIN | B00852EXUS |
| Additional Features | Easy to Install |
| Best Sellers Rank | #38,162 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #38 in Window Dressing Hardware |
| Brand | PRIME-LINE |
| Brand Name | PRIME-LINE |
| Color | White |
| Customer Reviews | 3.7 out of 5 stars 1,391 Reviews |
| Exterior Finish | Painted |
| Finish Types | White |
| Global Trade Identification Number | 00049793039620 |
| Handle Attachment Mechanism | Screw-based |
| Handle Material | Alloy Steel |
| Handle Type | Folding |
| Included Components | Crank Handle |
| Item Depth | 2.75 inches |
| Item Dimensions L x W | 2.75"L x 0.75"W |
| Item Type Name | Crank Handle |
| Item Weight | 2.7 Ounces |
| Manufacturer | Prime-Line Products |
| Manufacturer Part Number | FBA_H 3962 |
| Manufacturer Warranty Description | Goods are warranted against manufacturing defects for 1 year. |
| Material | Diecast |
| Material Type | Diecast |
| Metal Type | Alloy Steel |
| Model Number | H 3962 |
| Number of Items | 1 |
| Product Dimensions | 2.75"L x 0.75"W |
| Projection Distance | 2.75 Inches |
| Shape | Spline |
| Specific Uses For Product | Window |
| Style | Modern |
| Style Name | Modern |
| UPC | 049793039620 |
| Unit Count | 1.0 Count |
C**B
Nice easy upgrade
Old azz crank window handle was trash and really big which was annoying since it pushed into a new blind that was installed. This was just what I needed and was easy to install. Had different options too. The color is so much nicer than old crap handle too.
C**W
Perfect solution when you don't want the handle to protude.
Perfect solution for a tight space. Easy to install.
M**Y
Cheap price and cheaply made. Spend a little more and get some quality
Poorly structured together and not very sturdy material. Once you finally find one that fits it doesn't truly fit. It's a battle to crank. Open the window and then to close it. Pretty rickety. I'm returning and will spend the extra few dollars to get solid ones.
D**Z
Does the job!
Good, does the job. But the plastic inserts eventually will strip in a short time. Especially if used frequently!
F**T
So so quality
6 out of 9 of my cranks came with permanent, blue staining caused by contact with the blue printing of the packaging. Could not remove with isopropyl alcohol nor acetone. Strike one. They have a considerable amount of play in the joints -- so much so that I won't be surprised if the thin roller pins start coming out after a year. As they are cast from low quality pot metal, be really careful tightening down the set screws: might be easy to strip the threads.
K**.
perfect replacement for existing window cranks
Our house is twenty five years old and our window cranks are wearing out. These window cranks are the perfect fit. They are not only attractive but they are easy to change out and are quite durable as well. The white color matches our window frame color perfectly. The fold in easily to accommodate the wood blinds on the window. The price is reasonable as well. You will not be dissapointed.
R**L
Great for fitting in tight spaces
For years we had difficulty operating the crank of our awning style windows. the crank handle could not turn 360 due to the proximity to the frame. This foldable handle completely fixed that problem. And the choice of plastic inserts to ensure a tight fit makes the installation easy and gives us a high quality cranking ability. Even with the handle closed - as it needs to be during part of the turn - there is enough "purchase" to easily continue the rotation of the crank to open or close the window. This seems to be the only product of its kind; we are glad we found it. I now plan to install these on other windows that have shades where the crank handle prevents full drop down of the shade as it sticks out into the path of the shade at the bottom of the window.
W**Z
Design flaw
Flexible product with the included adapters. However, the pin holding folding handle keeps coming out. I've re-pinned with a pliers repeatedly, but if eventually fell out and the folding part of the handle fell off. Only had for a couple of months. Second, the adapters are plastic and you screw the set screw through them. Hard to get set screw tight enough.
安**田
ちゃんと簡単に取付できました。
各サイズのスピンドルが用意してあるので、ほぼ対応可能な商品だと思います。
R**K
Works
Does the job, only 4 star as it sticks out even further than the orginal handle despite being folded. So if you plantation blinds or roller blinds it may snag.
L**.
pesimo producto no sirve
no compren no sirve se cae
A**R
Perfect Replacement and Easy to Install
Great replacement handle! It fit my casement window perfectly and was very easy to install. The folding design works smoothly and doesn’t get in the way of blinds or curtains. The white finish also matches my window frame nicely. Solid quality and excellent value for the price.
D**N
Cheap and easy to break
do not buy, product is very low quality, broke within the first day of using it. Has plastic internals, my window is a bit hard to open and requires lots of pressure, plastic piece was not able to withstand and kept ripping off.
Trustpilot
1 day ago
1 week ago