---
product_id: 14783292
title: "Prime-Line H 3966 Spline Socket Crank Handle, Stone, Smooth 360-Degree Operation (Single Pack)"
brand: "prime-line"
price: "B/.23"
currency: PAB
in_stock: true
reviews_count: 11
category: "Prime Line"
url: https://www.desertcart.com.pa/products/14783292-prime-line-h-3966-spline-socket-crank-handle-stone-smooth
store_origin: PA
region: Panama
---

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

**Brand:** prime-line
**Price:** B/.23
**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?** B/.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/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

- • **Hassle-Free Installation:** Slip-on design secured with set screw, screwdriver ready
- • **Seamless 360° Operation:** Effortlessly open & close windows with fluid motion
- • **Robust Diecast Zinc Build:** Stone finish ensures long-lasting strength and style
- • **Trusted Prime-Line Quality:** Repairs that look as flawless as the original install
- • **Precision Fit for 3/8" Spindles:** Compatible with most older Andersen casement windows

## Overview

The Prime-Line H 3966 Casement Window Crank Handle features a durable diecast zinc construction with a sleek stone finish, designed for smooth 360-degree operation. It fits 3/8 inch spindles, including most older Andersen casement operators, and installs easily with a Phillips screwdriver and set screw. Engineered for lasting performance, it’s the go-to replacement for professional-grade window hardware.

## 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 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #62,364 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #50 in Window Locks & Latches |
| Brand | PRIME-LINE |
| Color | Stone |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,280) |
| Date First Available | January 16, 2007 |
| Exterior Finish | Painted |
| Finish | Stone |
| Hand Orientation | Right |
| Handle Attachment Mechanism | screw |
| Handle Material | Zinc |
| Included Components | 1 crank handle |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.6 ounces |
| Item model number | H 3966 |
| Manufacturer | Prime-Line Products |
| Material | Zinc |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | H 3966 |
| Product Dimensions | 3.12"L x 0.62"W |
| Projection Distance | 3.13 Inches |
| Size | 3/8 in. |
| Special Feature | Durable, Easy to Install |
| Special Features | Durable, Easy to Install |
| Specific Uses For Product | Window |
| UPC | 049793039668 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 year limited |

## 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)

## 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 Panama*
*Store origin: PA*
*Last updated: 2026-02-13*