---
product_id: 14783292
title: "Prime-Line H 3966 Spline Socket Crank Handle, Stone, Smooth 360-Degree Operation (Single Pack)"
brand: "prime-line"
price: "71 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Prime Line"
url: https://www.desertcart.ro/products/14783292-prime-line-h-3966-spline-socket-crank-handle-stone-smooth
store_origin: RO
region: Romania
---

# 360° smooth rotation 3/8 inch spindle fit diecast zinc durability Prime-Line H 3966 Spline Socket Crank Handle, Stone, Smooth 360-Degree Operation (Single Pack)

**Brand:** prime-line
**Price:** 71 Lei
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your window game with smooth style and rock-solid reliability!

## Quick Answers

- **What is this?** Prime-Line H 3966 Spline Socket Crank Handle, Stone, Smooth 360-Degree Operation (Single Pack) by prime-line
- **How much does it cost?** 71 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/14783292-prime-line-h-3966-spline-socket-crank-handle-stone-smooth)

## Best For

- prime-line enthusiasts

## Why This Product

- Trusted prime-line brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Timeless Stone Finish:** Subtle, neutral tone that blends perfectly with classic and modern window styles.
- • **Seamless 360° Operation:** Effortlessly open and close windows with fluid, full-circle motion.
- • **Rugged Diecast Zinc Build:** Stone-finished, corrosion-resistant handle designed to last through years of use.
- • **Quick Slip-On Installation:** Set screw and Phillips screwdriver ready for hassle-free, secure mounting.
- • **Precision Fit for 3/8" Spindles:** Compatible with most older Andersen casement operators for easy replacement.

## Overview

The Prime-Line H 3966 Casement Window Crank Handle offers a durable diecast zinc construction with a sleek stone finish, engineered for smooth 360-degree operation. Designed to fit 3/8 inch spindles, it’s an ideal replacement for most older Andersen casement windows. Easy to install with a Phillips screwdriver and set screw, this handle combines longevity with effortless functionality, making it a trusted choice for home improvement pros and DIY enthusiasts alike.

## Description

Product Description The H 3966 Casement Window Crank Handle from Prime-Line has a smooth 360 degree operation that allows you to easily open and close windows as needed. It features durable, diecast construction with a stone finish, as well as easy installation. A Phillips head screwdriver is required for the easy slip-on installation. The 3/8 inch bore is held firmly in place with the supplied set screw. The Prime-Line Casement Crank Handle can be used on 3/8 inch spindles, including on most older Anderson casement operators. Please check your measurements before ordering. We specialize in repair and replacement hardware products for your home. Prime-Line’s commitment to quality results in repairs which look as good as the initial install, making us the go-to solution for our loyal customers. From the Manufacturer This is a stone diecast crank handle that fits most older Andersen casement operators. The 3/8 in. bore fits most older Andersen spindles and is held firmly in place with the supplied set screw.

Review: 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.
Review: Great transaction! - Matched my window perfectly. Came on time and hassle free. Thank you!

## Features

- CASEMENT CRANK HANDLE – The H 3966 Casement Window Crank Handle from Prime-Line features 3/8 inch bore and a 3-1/8 inch reach. It has a smooth 360 degree operation that allows you to easily open and close windows as needed.
- DIECAST CONSTRUCTION – This window crank features a durable diecast construction with a stone finish.
- INSTALLATION – A Phillips head screwdriver will be required for the easy slip-on installation. The 3/8 inch bore is held firmly in place with the supplied set screw.
- COMPATIBILITY – This Prime-Line Casement Crank Window Handle can be use on 3/8 inch spindles only, (fits most older Anderson casement operators).
- Prime-Line GRADE – We specialize in repair and replacement hardware products for your home. Prime-Line’s commitment to quality results in repairs which look as good as the initial install, making us the go-to solution for our loyal customers.
- NOTE - Please refer to the line art for dimensions and compare with your needs before ordering

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000KKTFGK |
| Additional Features | Durable, Easy to Install |
| Best Sellers Rank | #26,952 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Window Locks & Latches |
| Brand | PRIME-LINE |
| Brand Name | PRIME-LINE |
| Color | Stone |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 out of 5 stars 3,282 Reviews |
| Exterior Finish | Painted |
| Finish Types | Stone |
| Global Trade Identification Number | 00049793039668 |
| Hand Orientation | Right |
| Handle Attachment Mechanism | screw |
| Handle Material | Zinc |
| Handle Type | Swivel |
| Included Components | 1 crank handle |
| Item Dimensions L x W | 3.12"L x 0.62"W |
| Item Type Name | Crank Handle |
| Item Weight | 0.1 Pounds |
| Manufacturer | Prime-Line Products |
| Manufacturer Warranty Description | 1 year limited |
| Material | Zinc |
| Material Type | Zinc |
| Model Number | H 3966 |
| Number of Items | 1 |
| Product Dimensions | 3.12"L x 0.62"W |
| Projection Distance | 3.13 Inches |
| Shape | Round |
| Specific Uses For Product | Window |
| Style | Set Screw |
| Style Name | Set Screw |
| UPC | 049793039668 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** PRIME-LINE
- **Color:** Stone
- **Material:** Zinc
- **Product Dimensions:** 3.12"L x 0.62"W
- **Style:** Set Screw

## Images

![Prime-Line H 3966 Spline Socket Crank Handle, Stone, Smooth 360-Degree Operation (Single Pack) - Image 1](https://m.media-amazon.com/images/I/511HY-Wro2L.jpg)

## Available Options

This product comes in different **Size, Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great and expensive replacement color matched.
*by K***G on October 1, 2024*

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.

### ⭐⭐⭐⭐⭐ Great transaction!
*by S***N on January 12, 2026*

Matched my window perfectly. Came on time and hassle free. Thank you!

### ⭐⭐⭐⭐ Ok, but flashing was not removed from inside of gear casting.
*by A***Y on July 25, 2024*

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 3/8” 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.

## Frequently Bought Together

- Prime-Line H 3966 Spline Socket Crank Handle, Stone, Smooth 360-Degree Operation (Single Pack)
- Andersen Split Arm Operator (Right Hand) in Stone Color (1982-1995)
- Andersen Split Arm Operator (Left Hand) in Stone Color (1982-1995) - 1361316

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-04*