---
product_id: 27277384
title: "Apexstone 80N/18lb Gas Strut,Gas Spring,Lid Support,Gas Shocks,Lift Support,Lid Stay,Set of 2"
brand: "apexstone"
price: "฿1302"
currency: THB
in_stock: true
reviews_count: 8
category: "Apexstone"
url: https://www.desertcart.co.th/products/27277384-apexstone-80n-18lb-gas-strut-gas-spring-lid-support-gas
store_origin: TH
region: Thailand
---

# 6.9 in extended length 18 lb lift force -10℃ to 50℃ operating temp Apexstone 80N/18lb Gas Strut,Gas Spring,Lid Support,Gas Shocks,Lift Support,Lid Stay,Set of 2

**Brand:** apexstone
**Price:** ฿1302
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your lid game — smooth, sturdy, and built to last!

## Quick Answers

- **What is this?** Apexstone 80N/18lb Gas Strut,Gas Spring,Lid Support,Gas Shocks,Lift Support,Lid Stay,Set of 2 by apexstone
- **How much does it cost?** ฿1302 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/27277384-apexstone-80n-18lb-gas-strut-gas-spring-lid-support-gas)

## Best For

- apexstone enthusiasts

## Why This Product

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

## Key Features

- • **Bonus Set of Two:** Includes two gas struts so you’re always prepared with a ready-to-install spare.
- • **Perfect Fit Precision:** 6.9-inch center-to-center length ensures seamless replacement for compatible safes and cabinets.
- • **Effortless Lid Support:** Soft-open gas struts gently lift and hold lids up to 35 lbs with 18 lbs of precise force.
- • **Wide Temperature Range:** Operates reliably from freezing 14℉ to warm 122℉, perfect for any home or office setting.
- • **Durable Stainless Steel Build:** Premium corrosion-resistant materials guarantee long-lasting performance in varied environments.

## Overview

The Apexstone 80N/18lb Gas Strut set offers a reliable, stainless steel gas spring solution designed to gently lift and securely hold lids weighing 18-35 lbs. With a precise 6.9-inch extended length and 18 lbs of force, it fits most gun safes and cabinets, operating smoothly across a wide temperature range (-10℃ to 50℃). Backed by a 1-year warranty and including two struts per set, it’s the smart, durable upgrade for professionals seeking effortless lid support and peace of mind.

## Description

Buy Apexstone 80N/18lb Gas Strut,Gas Spring,Lid Support,Gas Shocks,Lift Support,Lid Stay,Set of 2: Lift Supports - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: The installation instructions that came with the spring are not very useful or complete - Gas springs are neat devices that can help doors or lids open with minimum effort and maximum safety. I bought a pair of springs to hold open the doors of two small cabinets (one spring per cabinet) that are installed horizontally in the soffit area above existing wall cabinets in the laundry room. The installation instructions that came with the spring are not very useful or complete. The doors and the cabinets are about 9-in high, so I chose the Apexstone 80N/18lb 7-in long springs for the application so that the spring physically fits within the cabinet. The small lower end of the piston of the spring is pinned to the wall of the cabinet near the bottom front and the cabinet and the upper larger cylinder end attaches to door near the hinge. It took a bit of trial-and-error to get the proper location of the upper pin on the door. In the hope of saving others some grief, let me outline the logic and the process I used for finalizing the critical location of this door pin: 1. The spring (cylinder) is installed when the door is open (hinged horizontally at the top of the cabinet in my case) and the spring is fully extended and holds the door open horizontal at about 90 Deg. 2. When the door is closed by pushing it down and rotating it, the weigh of the door and the hand force compress the gas spring and gently close the door in a vertical position. 3. In the closed position the door is kept closed due to the action (moment) of its weight which is stronger than the spring action (moment) around the hinge. The spring has very little resistance in this position. 4. The key objective in selecting a proper position of the door pin is to balance the action (moment) of the spring with the action (moment) of the weight around the door hinge. It is like balancing two riders around the pivot of a teeter-tooter swing. One rider represents the weight of the door and the other simulates the spring force. The pivot is like the door hinge. The two actions would be in balance when the products of the weight (force) times the distance of each rider from the pivot are exactly equal. 5. Applying this balance requirement to my situation, the product of the weight of the door (Wd) times 1/2 of its height (Hd) or the distance to the hinge should balance or be equal to the product of the spring force (Fs) when fully extended times the critical distance (Sd) of the upper spring end from the hinge. This means the product Wd X (Hd/2) must equal the product Fs X Sd. If three of these quantities are known, one can solve for the fourth. That is exactly the case in my situation: the manufacturer lists the spring force Fs as 18lb, one 1/2 of the door height (Hd/2) is 4.50-in, and the weight of the door Wd is 4 lb. So knowing the three quantities I can determine the fourth, the critical distance Sd required for balancing the spring and the door actions. The distance Sd is Wd X (Hd/2)/Fs. Computing Sd = 4 lb X 4.5 /18 lb = 1 in. 6. So the spring pin should be located on the door (the critical distance Sd) about 1 inch from the hinge. 7. I pinned the piston (bottom) end of the spring inside the cabinet at the lower right front corner and attached the upper cylinder end on the door at about 1-in from the hinge. The bracket that accepts this upper end of the spring has long slots for adjusting the critical distance. 8. It turns out, I had to increase the critical distance to about 1.25 in to allow for the damper action in the cabinet hinges. 9. I hope the attached pictures will help clarify the verbiage of this long-winded write-up. 10. One last comment: to separate the cylinder spring from its pivots, you need to insert a little screwdriver below the chrome split ring in one of the two locations provided while pulling out to pop the socket out from ball joint at either pivot. The springs work great, almost magically. They prevent the door from closing inadvertently on the fingers. desertcart fulfillment is always top notch. Little tricky to install, but you will be greatly rewarded if you are patient and do not give up.
Review: Sentry Pistol Safe gas strut replacement - The gas strut on my Sentry Pistol Safe stopped working after about 4.5 years. I read the desertcart reviews for the Apexstone 80N/18lb Gas Strut and decided to give it a try. Everything I read was accurate and the Apexstone product is an almost perfect replacement... and works great!! The only difference between the Apexstone and the gas strut that came with the safe is the lid lift height which is an insignificant an inch or so less. This is not a problem at all... the lid still lifts well and high, allowing more than ample access to the contents of the pistol safe. Installation is a breeze if you have the following tools: a medium Phillips head screwdriver, an 8 mm metric box or open end wrench; and a 13 mm metric box of open end wrench. Simply unscrew and remove the fittings and spring from the old gas strut, unscrew and remove the fittings from the Apexstone strut and replace them with the fittings that you removed from the original strut. Install the Apexstone strut (and don't forget the spring) and the job is done. With the proper tools you should be able to complete the removal and re-installation in 5 or 10 minutes. It is as quick and easy as that. This Apexstone 80N/18lb Gas Strut fits great, works great and costs a lot less than a replacement gas strut from Sentry. If the gas strut on your Sentry Pistol Safe is getting a little "tired" it is time to replaced it and the Apexstone 80N/18lb Gas Strut is perfect and solves your problems. The purchase includes two gas struts so you have an extra to keep handy for the next time you need a replacement. Gas struts don't last forever. This is a great product and the perfect solution for Sentry Pistol Safe owners. I recommend it highly, and you can't beat the price.

## Features

- If you are buying to replace the gas strut on the gun safe, please be sure to first confirm that the center-to-center measurement of the original gas strut is around 7 inches. If the original gas strut’s center-to-center measurement is 7.5 inches, then it will be slightly shorter. If this matters to you, please do not place an order.
- Force: 18 Lbs(Per Strut), Length (Center-to-Center): 6.9 inch, Compressed Length (Center-to-Center): 4.7 inch.
- Lids soft open gently, Ideal for supporting the lid to keep it open.Support opens lids to a maximum angle of 90 degrees. Available working temperature: -10℃~50℃/14℉-122℉.
- Lift supports the door/lid which the SIDE LENGTH is between 9 and 15 inches, Lid weight is between 18 and 35 lbs.
- We offer 1 YEAR 100% SATISFACTORY WARRANTY, if unfortunately our SOFT OPEN LID GAS STRUT did not work well, please kindly contact us for exchange, refund or return.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0156P6YVC |
| Auto Part Position | Rear |
| Best Sellers Rank | #22,083 in Automotive ( See Top 100 in Automotive ) #99 in Automotive Replacement Shock Lift Supports |
| Brand | Apexstone |
| Brand Name | Apexstone |
| Color | Black |
| Compressed Length | 4.7 Inches |
| Customer Reviews | 4.4 out of 5 stars 3,195 Reviews |
| Extended Length | 6.9 Inches |
| Included Components | Iron&ABS |
| Manufacturer | Apexstone |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model | FBA_GS1802 |
| Operating Force | 18 Pounds |
| Operating force | 18 Pounds |

## Product Details

- **Brand:** Apexstone
- **Color:** Black
- **Material:** Stainless Steel
- **Auto Part Position:** Rear
- **Extended Length:** 6.9 Inches

## Images

![Apexstone 80N/18lb Gas Strut,Gas Spring,Lid Support,Gas Shocks,Lift Support,Lid Stay,Set of 2 - Image 1](https://m.media-amazon.com/images/I/61TihtW1alL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ The installation instructions that came with the spring are not very useful or complete
*by V***S on August 19, 2016*

Gas springs are neat devices that can help doors or lids open with minimum effort and maximum safety. I bought a pair of springs to hold open the doors of two small cabinets (one spring per cabinet) that are installed horizontally in the soffit area above existing wall cabinets in the laundry room. The installation instructions that came with the spring are not very useful or complete. The doors and the cabinets are about 9-in high, so I chose the Apexstone 80N/18lb 7-in long springs for the application so that the spring physically fits within the cabinet. The small lower end of the piston of the spring is pinned to the wall of the cabinet near the bottom front and the cabinet and the upper larger cylinder end attaches to door near the hinge. It took a bit of trial-and-error to get the proper location of the upper pin on the door. In the hope of saving others some grief, let me outline the logic and the process I used for finalizing the critical location of this door pin: 1. The spring (cylinder) is installed when the door is open (hinged horizontally at the top of the cabinet in my case) and the spring is fully extended and holds the door open horizontal at about 90 Deg. 2. When the door is closed by pushing it down and rotating it, the weigh of the door and the hand force compress the gas spring and gently close the door in a vertical position. 3. In the closed position the door is kept closed due to the action (moment) of its weight which is stronger than the spring action (moment) around the hinge. The spring has very little resistance in this position. 4. The key objective in selecting a proper position of the door pin is to balance the action (moment) of the spring with the action (moment) of the weight around the door hinge. It is like balancing two riders around the pivot of a teeter-tooter swing. One rider represents the weight of the door and the other simulates the spring force. The pivot is like the door hinge. The two actions would be in balance when the products of the weight (force) times the distance of each rider from the pivot are exactly equal. 5. Applying this balance requirement to my situation, the product of the weight of the door (Wd) times 1/2 of its height (Hd) or the distance to the hinge should balance or be equal to the product of the spring force (Fs) when fully extended times the critical distance (Sd) of the upper spring end from the hinge. This means the product Wd X (Hd/2) must equal the product Fs X Sd. If three of these quantities are known, one can solve for the fourth. That is exactly the case in my situation: the manufacturer lists the spring force Fs as 18lb, one 1/2 of the door height (Hd/2) is 4.50-in, and the weight of the door Wd is 4 lb. So knowing the three quantities I can determine the fourth, the critical distance Sd required for balancing the spring and the door actions. The distance Sd is Wd X (Hd/2)/Fs. Computing Sd = 4 lb X 4.5 /18 lb = 1 in. 6. So the spring pin should be located on the door (the critical distance Sd) about 1 inch from the hinge. 7. I pinned the piston (bottom) end of the spring inside the cabinet at the lower right front corner and attached the upper cylinder end on the door at about 1-in from the hinge. The bracket that accepts this upper end of the spring has long slots for adjusting the critical distance. 8. It turns out, I had to increase the critical distance to about 1.25 in to allow for the damper action in the cabinet hinges. 9. I hope the attached pictures will help clarify the verbiage of this long-winded write-up. 10. One last comment: to separate the cylinder spring from its pivots, you need to insert a little screwdriver below the chrome split ring in one of the two locations provided while pulling out to pop the socket out from ball joint at either pivot. The springs work great, almost magically. They prevent the door from closing inadvertently on the fingers. Amazon fulfillment is always top notch. Little tricky to install, but you will be greatly rewarded if you are patient and do not give up.

### ⭐⭐⭐⭐⭐ Sentry Pistol Safe gas strut replacement
*by S***I on March 3, 2020*

The gas strut on my Sentry Pistol Safe stopped working after about 4.5 years. I read the Amazon reviews for the Apexstone 80N/18lb Gas Strut and decided to give it a try. Everything I read was accurate and the Apexstone product is an almost perfect replacement... and works great!! The only difference between the Apexstone and the gas strut that came with the safe is the lid lift height which is an insignificant an inch or so less. This is not a problem at all... the lid still lifts well and high, allowing more than ample access to the contents of the pistol safe. Installation is a breeze if you have the following tools: a medium Phillips head screwdriver, an 8 mm metric box or open end wrench; and a 13 mm metric box of open end wrench. Simply unscrew and remove the fittings and spring from the old gas strut, unscrew and remove the fittings from the Apexstone strut and replace them with the fittings that you removed from the original strut. Install the Apexstone strut (and don't forget the spring) and the job is done. With the proper tools you should be able to complete the removal and re-installation in 5 or 10 minutes. It is as quick and easy as that. This Apexstone 80N/18lb Gas Strut fits great, works great and costs a lot less than a replacement gas strut from Sentry. If the gas strut on your Sentry Pistol Safe is getting a little "tired" it is time to replaced it and the Apexstone 80N/18lb Gas Strut is perfect and solves your problems. The purchase includes two gas struts so you have an extra to keep handy for the next time you need a replacement. Gas struts don't last forever. This is a great product and the perfect solution for Sentry Pistol Safe owners. I recommend it highly, and you can't beat the price.

### ⭐⭐⭐⭐⭐ Great hinges, used for ottoman to hold books in babies room
*by S***T on May 26, 2018*

***Added a short video of the ottoman lid closing using these shocks*** We found an awesome ottoman we really liked four our babies room so we bought it to hold all of his books. Once we got it home and loaded with books we realized the top was really heavy and closed hard. I knew that as soon as our kid was standing and walking he would smash his fingers. I had some cabinet soft close hinges that I tried to add but they weren’t enough so I went on the search for shocks and found these. Glad I did as they work great! Not the original design for these but nonetheless did what we wanted. The only slight complaint is they work well until the last inch or so and then close quickly. I didn’t remove any stars though because these weren’t designed for an ottoman top to not smash a kids fingers so I don’t tbink that’s a product shortcoming. I went ahead and still used the soft close hinges as that helped remove that last little bit of force when closing. The other positive is now the top stays open much easier. Before it didn’t stay open very well but no issues anymore. Included a couple pics. Took a little fiddling around with gas shock positions to work best. Essentially installing it one way the shock “pushes” and the other way it “pulls”. So I flipped them around a couple ways to find the best combo which turned out to be having one pushing and one pulling. Let me know do you have any questions as this was a little out of the ordinary but we are very happy with the results!

## Frequently Bought Together

- Apexstone 80N/18lb 7 Inch Gas Strut 80N Gas Strut 7 Inch Gas Strut Cabinet 80N Gas Spring Gas Shocks Lift Supports Lid Stay, Set of 2
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- Apexstone 100N/22.5lb Gas Struts 10 Inch Gas Struts Lift Supports Gas Spring Lid Support Gas Props/Shocks, Set of 4

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-06*