---
product_id: 644624152
title: "Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine (Hanger Rod Length: 150 mm, Ø 8 mm,Length 110mm)"
brand: "fnktek"
price: "$U2703"
currency: UYU
in_stock: true
reviews_count: 8
url: https://www.desertcart.uy/products/644624152-weight-stack-pin-and-spring-collar-weight-stack-extender-pin
store_origin: UY
region: Uruguay
---

# 150mm & 200mm length options Solid alloy steel build Supports +130 lbs extra load Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine (Hanger Rod Length: 150 mm, Ø 8 mm,Length 110mm)

**Brand:** fnktek
**Price:** $U2703
**Availability:** ✅ In Stock

## Summary

> 🏋️‍♀️ Unlock hidden strength with every rep!

## Quick Answers

- **What is this?** Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine (Hanger Rod Length: 150 mm, Ø 8 mm,Length 110mm) by fnktek
- **How much does it cost?** $U2703 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/644624152-weight-stack-pin-and-spring-collar-weight-stack-extender-pin)

## Best For

- fnktek enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Premium solid steel construction resists bending and wear
- • **Safe & Secure:** Snug fit with spring collar ensures stable, worry-free lifting sessions
- • **Extend Your Limits:** 150mm and new 200mm pin lengths to expand your workout possibilities
- • **Maximize Your Gains:** Add up to 130 lbs extra weight for next-level muscle challenge
- • **Custom Fit Flexibility:** Choose between 8mm or 10mm diameters for perfect compatibility

## Overview

The FNKTEK Weight Stack Pin and Spring Collar is a durable alloy steel gym accessory designed to extend the weight capacity of cable towers and functional trainers. Available in 8mm and 10mm diameters with 150mm and 200mm lengths, it supports adding up to 130 lbs extra weight safely and securely, making it ideal for both home and commercial gym setups.

## Description

Full description not available

## Features

- More size options: In addition to the 150MM length, our pin-loaded bar now offers a new 200MM length option. This extended bar allows for increased weight capacity, providing more possibilities for your workouts.
- Product Use: Weight stacking pins are suitable for home and professional fitness equipment. Simply insert it into the weight stacker and gradually add weight to the sleeve as needed for your workout. Enhance your workout and easily achieve your fitness goals.
- Package Content: Package includes a weight stacking pin and a spring ring. The weight stacking pin sleeve is long enough and designed to fit a 2 inch Olympic weight plate to add extra weight. If your machine can no longer expand the weight on its own, it's much better to use our weight stacking pin than to buy a new machine.
- Premium Quality Materials:Weight stacking pins are made of sturdy solid steel for safety, reliability, resistance to bending and long life. Up to 130 pounds of extra weight can be added to the equipment to ensure that your muscles are constantly being challenged in new ways!
- Buying Guide: Our weight stacking pins are available in 5/16 inch (8 mm) and 3/8 inch (10 mm) diameter pins. Please note that the 8mm pins are for fitness equipment with a 10mm diameter and the 10mm pins are for fitness equipment with a 12mm diameter. Before purchasing, please measure the cable stacking pin diameter to select the appropriate size for your fitness equipment.
- Reliable Gym Accessory: This pin extender fits snugly into the weight rack of your gym machine, ensuring a safe and stable weightlifting workout. One thing to keep in mind is the distance from the hole of the insert to the floor is appropriate to put the weight plates on.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 11.18 x 4.88 x 3.82 inches |
| Package Weight | 0.79 Kilograms |
| Item Dimensions  LxWxH | 4.7 x 3 x 10 inches |
| Brand Name | FNKTEK |
| Model Name | chaxiaogan-8-110(150mm |
| Color | Black |
| Material | Alloy Steel |
| Suggested Users | unisex-adult |
| Manufacturer | FNKTEK |
| Part Number | chaxiaogan |
| Included Components | 1X Spring Clip Collar, 1X weight stack pin |

## Images

![Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine (Hanger Rod Length: 150 mm, Ø 8 mm,Length 110mm) - Image 1](https://m.media-amazon.com/images/I/61MJmMzB-ZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This works great to add serious weight to your light stack.
*by G***D on March 21, 2025*

This is great. I have a relatively light stack, and I needed to add 25 to 35 pounds for heavy back pulls. Feels like it is made from quality material and does the job. I wasn't sure about the pin size, so I got the smallest one and only needed to wrap a little bit of electrical tape around it so it fit more snugly. If you are a powerhouse and need to add serious weight to your puny stack, buy this right now and go pump your muscles you gurley man!

### ⭐⭐⭐⭐⭐ Know the size!
*by I***2 on January 18, 2025*

First off, know the size of the holes of the machines you’re using. Simple google search helps, I learned Planet Fitness USUALLY has 8mm machines. This tool is perfect, low price and good quality! Can be too big/long for some machines so use common sense on where and what you’re trying to use it on.

### ⭐ Won’t hold up
*by C***A on April 4, 2025*

Not durable. Unusable after less than one month of use. Only a 30 day return window.

## Frequently Bought Together

- FNKTEK Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machin
- PERFORMANCE PIN The Original Drop Set Pins for Gym | One More Rep with Weight Stack Pins | Instant Transition to Lower Weights for More Reps | Proudly Made in America | 5/16" Pin
- Gymreapers Ankle Straps (Pair) For Cable Machine Kickbacks, Glute Workouts, Lower Body Exercises - Adjustable Leg Straps with Neoprene Padding

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.uy/products/644624152-weight-stack-pin-and-spring-collar-weight-stack-extender-pin](https://www.desertcart.uy/products/644624152-weight-stack-pin-and-spring-collar-weight-stack-extender-pin)

---

*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-03-02*