--- product_id: 646281153 title: "Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine" brand: "fnktek" price: "₱3812" currency: PHP in_stock: true reviews_count: 11 category: "Fnktek" url: https://www.desertcart.ph/products/646281153-weight-stack-pin-and-spring-collar-weight-stack-extender-pin store_origin: PH region: Philippines --- # 200mm extended pin length Solid alloy steel durability Supports +130 lbs extra weight Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine **Brand:** fnktek **Price:** ₱3812 **Availability:** ✅ In Stock ## Summary > 🏋️‍♀️ Unlock Your Machine’s Full Potential—Add Serious Weight, No Limits! ## 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 by fnktek - **How much does it cost?** ₱3812 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/646281153-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 - • **Maximize Your Gains:** Extend your weight stack capacity by up to 130 lbs with the new 200mm pin option—because your progress shouldn’t be limited. - • **Upgrade, Don’t Replace:** Boost your existing gym machine’s capacity without the cost of a new setup—smart fitness investment for home or commercial use. - • **Built to Last, Built for Safety:** Crafted from premium solid alloy steel, this pin resists bending and ensures a secure, stable workout every time. - • **Effortless Weight Customization:** Quickly add or remove weight plates with the included spring collar for seamless transitions between sets. - • **Precision Fit for Every Machine:** Available in 8mm and 10mm diameters to perfectly match your cable tower or functional trainer—no more guessing or returns. ## Overview The FNKTEK Weight Stack Pin and Spring Collar is a premium gym accessory designed to extend the weight capacity of cable towers and functional trainers. Available in 150mm and 200mm lengths with 8mm and 10mm diameter options, it supports adding up to 130 pounds of extra weight. Made from durable alloy steel, it ensures safety and longevity while fitting snugly into your existing equipment. Ideal for both home and commercial gyms, this pin lets you push past your machine’s original limits without costly upgrades. ## Description 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. Review: Finally found a fit...FNTEK works well - Good design fits well. I had to return other products multiple times for not fitting the plates-being too big. The FNTEK works well, bought another. Highly recommend. Review: This works great to add serious weight to your light stack. - 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! ## 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 | |---------------|-------| | ASIN | B0D3KYNVHR | | Best Sellers Rank | #99,185 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #602 in Exercise Machine Attachments | | Brand Name | FNKTEK | | Color | Hanger rod length:150 mm | | Customer Reviews | 4.1 4.1 out of 5 stars (72) | | Date First Available | May 8, 2024 | | Included Components | 1X Spring Clip Collar, 1X weight stack pin | | Item Dimensions LxWxH | 4.7 x 3 x 10 inches | | Item Package Dimensions L x W x H | 11.42 x 3.7 x 2.99 inches | | Manufacturer | FNKTEK | | Material | Alloy Steel | | Model Name | Weight Stack Pin | | Package Weight | 0.66 Kilograms | | Part Number | chaxiaogan | | Size | Ø 10 mm,Length 110mm | | Suggested Users | unisex-adult | ## Images ![Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine - Image 1](https://m.media-amazon.com/images/I/61MJmMzB-ZL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Finally found a fit...FNTEK works well *by A***R on December 27, 2025* Good design fits well. I had to return other products multiple times for not fitting the plates-being too big. The FNTEK works well, bought another. Highly recommend. ### ⭐⭐⭐⭐⭐ 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! ### ⭐⭐⭐⭐⭐ It works *by J***N on November 1, 2025* This is an excellent product that met my expectations. ## 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.ph/products/646281153-weight-stack-pin-and-spring-collar-weight-stack-extender-pin](https://www.desertcart.ph/products/646281153-weight-stack-pin-and-spring-collar-weight-stack-extender-pin) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-05-24*