---
product_id: 909341
title: "KC10HD Safety Spring Door Closer, White, 4-1/4 In."
brand: "prime-line"
price: "$49.16"
currency: USD
in_stock: true
category: "Prime Line"
url: https://www.desertcart.us/products/909341-kc10hd-safety-spring-door-closer-white-4-1-4-in
store_origin: US
region: United States of America
---

# Adjustable tension & speed 150 lbs closing force Surface-mounted, easy install KC10HD Safety Spring Door Closer, White, 4-1/4 In.

**Brand:** prime-line
**Price:** $49.16
**Availability:** ✅ In Stock

## Summary

> 🚪 Close the door on hassle—effortless safety, every time!

## Quick Answers

- **What is this?** KC10HD Safety Spring Door Closer, White, 4-1/4 In. by prime-line
- **How much does it cost?** $49.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/909341-kc10hd-safety-spring-door-closer-white-4-1-4-in)

## 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

- • **UL Listed & Fire Rated:** Safety certified with a 1/2-hour fire rating for peace of mind
- • **DIY-Friendly Surface Mount:** Quick install with included hardware—no pro needed
- • **Universal Non-Handed Design:** Fits both left and right swing doors seamlessly
- • **Customizable Tension & Speed:** Fine-tune closing performance for your unique door setup
- • **Powerful 150 lbs Closing Force:** Handles heavy doors & windy conditions with ease

## Overview

The Prime-Line KC10HD Safety Spring Door Closer is a durable, diecast, surface-mounted device designed to convert hinged doors into self-closing ones. Delivering up to 150 lbs of adjustable closing force, it fits both left and right-handed doors and features customizable tension and speed settings. UL listed with a 1/2-hour fire rating, it ensures safety and convenience for residential and light commercial use. Installation is straightforward with included hardware, making it a perfect DIY upgrade for enhanced security and energy efficiency.

## Description

Product Description Convert hinged doors into self-closing doors with the Prime-Line KC10HD Safety Spring Door Closer. Designed for residential and light commercial applications, this surface-mounted spring closer automatically returns doors to the closed position after opening, helping improve safety, convenience, and security. Ideal for entry doors, garage access doors, utility rooms, and other hinged door applications, this closer provides dependable self-closing functionality without the complexity of hydraulic systems. Constructed from durable diecast components with a white painted finish, this non-handed door closer is suitable for both left- and right-swinging doors. The spring-loaded mechanism delivers up to 150 lbs. of closing force and features adjustable tension and closing speed, allowing users to customize performance based on door weight and environmental conditions. The arm is capable of a 180-degree swing, although actual door travel may be limited by the installed position of the closer body. The surface-mounted design makes installation straightforward and includes a spring closer, tensioning rod, slide plate, hole plugs, mounting hardware, and installation instructions. UL listed with a 1/2-hour fire rating, this self-closing device provides a practical solution for doors requiring automatic closing. In windy conditions or on heavier doors, a second closer may be recommended for optimal performance. Be sure to compare dimensions and installation requirements before purchasing. From the Manufacturer These safety spring-activated door closers are constructed of diecast materials and come in a white painted finish. They are U.L. listed with a 1/2 hour fire rating, and can be used to close doors weighing up to 150 lbs. These closers feature an adjustable closing speed and they are non-handed, allowing them to be used on both left and right-handed swinging doors. Both the closer and the plastic slide plate are surface-mounted, and are easy to install. These closers operate in a pushing-closed manner, rather than in a pulling-closed method, and they do not have a hold open feature. Distance of travel: The closer arm of this safety spring closer has the ability to swing a full 180 degrees, but once it is mounted in place, the door’s distance of swing will be reduced to the point of where it makes contact with the bullet-shaped housing of the closer. For a rust and weather resistant closure, consider model numbers KC50HD (white) and KC57US (brown) which are suitable for outdoor/exterior use, designed for use with lightweight gates and screen doors. All fasteners and installation instructions are included with this item. Other colors/finishes include: black, brown, chrome plated and satin chrome plated. Be sure to view the manufacturer’s How-To Installation Video also linked to this page, in the upper left hand corner. Application of white lithium grease to internal compressing springs may be desired, but you should avoid using lubricants like WD-40 which breaks down lubricating grease.

## Features

- EASY DIY PROJECT – Thanks to these Prime-Line KC10HD safety spring door closers, your next to-do is quick and easy. Use these door closers to convert hinged doors to self-closing ones.
- INCLUDES – (1) Surface mounted spring-loaded door closer, tensioning rod, slide plate and hole plugs to cover adjustment holes in closer body after desired tension has been set.
- INSTALLATION NOTE – Make sure the closer and tension arm rest on the same plane, not at an angle due to your molding offset. This spring door closer can generate up to 150 pounds of closing force and can be used on both left and right-handed doors adjustment holes in closer body after desired tension has been set.
- ADJUSTABLE TENSION – Easily adjust the tension on this safety spring door closer. These closers also feature adjustable closing speed. DO NOT adjust more than 4 quarter turns of the tension arm, or spring failure can happen.
- PRODUCT MAINTENANCE– To alleviate spring noise suggested product to use is wheel bearing grease on spring coils when spring is not under load (no other product suggested)
- NOTE - This product is rated for 150 pounds of closing force, (weight of door + wind force trying to keep door open) two may be needed to close if you live in a windy area and have a heavy door

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003DQGEMQ |
| Best Sellers Rank | #92,708 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #62 in Door Closers |
| Brand Name | PRIME-LINE |
| Color | White |
| Customer Reviews | 4.1 4.1 out of 5 stars (3,717) |
| Exterior Finish | White |
| Global Trade Identification Number | 00049793700100 |
| Included Components | Door closer and fasteners |
| Installation Type | Screw-In |
| Item Dimensions L x W x H | 9.25"L x 1.5"W x 6.5"H |
| Item Highlight | Diecast Construction, Easy to Install, Converts Hinged Doors to Self-Closing, Non-Handed, Single Pack |
| Item Type Name | Hinged Doors to Self-Closing – Diecast Construction (4-1/4 inch, Non-Handed) |
| Item Weight | 0.4 kg |
| Manufacturer | Prime-Line Products |
| Manufacturer Part Number | KC10HD |
| Manufacturer Warranty Description | Goods are warranted against manufacturing defects for 1 year. |
| Material Type | Diecast |
| Model Number | KC10HD |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Recommended Uses For Product | Converting hinged doors to self-closing doors, ensuring proper closing in high wind areas or with heavy doors, and providing a safer environment by automatically closing doors, particularly for doors with U. |
| Shape | shape |
| Size | 4-1/4 in. |
| Specification Met | UL |
| UPC | 049793700100 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** PRIME-LINE
- **Color:** White
- **Exterior Finish:** White
- **Material:** Diecast
- **Product Dimensions:** 9.25"L x 1.5"W x 6.5"H

## Images

![KC10HD Safety Spring Door Closer, White, 4-1/4 In. - Image 1](https://m.media-amazon.com/images/I/41AmCAJn3PL.jpg)

## Questions & Answers

**Q: After installation, is there an easy method or control, excluding the use of a separate door stop, to keep the door wide open if needed?**
A: There is not an "easy" method to hold the door open. The only thing to do is use a doorstop.

**Q: Can the closer be disabled without uninstalling it?  It appears from the picture that maybe the closing rod could be removed and re-inserted?**
A: As best that I remember, the closing rod can be removed from the hole in the spring assembly.  did in fact uninstall the unit by pulling the rod out and separating the door from the spring. The problem was that the spring required so much rotational torque to fully close the door that I needed to use the next to last hole on the cylinder and the cylinder kept on snapping back to a position where the last hole couldn't be reached. I finally managed it by jamming the cylinder by placing the screwdriver in a adjacent hole. This allowed me to hold the cylinder still so that I could reposition the rod .

**Q: I know this is a door closer, but it does soft close or does it accelerate to close?**
A: I have it set to just reach the closed position but not to overcome the door latch and lock the door. In this case it is a soft close. If you increase the tension to close the door until it latches, it will probably accelerate somewhat due to the momentum gained while it swings shut.

**Q: How much pressure does it take to open? Will my 90 lb. Lab. be able to push it open?**
A: You can adjust the closing (and thus opening) force. It should be no problem to adjust it such that a dog can push open the door.

## Frequently Bought Together

- Prime-Line KC10HD Safety Spring Door Closer – Easy to Install to Convert Hinged Doors to Self-Closing – Diecast Construction, 4-1/4 In. White, Non-Handed (Single Pack)
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-26*