---
product_id: 321893733
title: "CALIDAKA 4pcs Spinlock Collars, Dumbbell Hex Nut, Dumbbell Rod Nut, 1 Inch Standard Barbell Screw Collar, Nonslip Dumbbell Screw Clamps for Dumbell Weight Lifting Fitness Training"
brand: "calidaka"
price: "¥3332"
currency: JPY
in_stock: true
reviews_count: 9
category: "Calidaka"
url: https://www.desertcart.jp/products/321893733-calidaka-4pcs-spinlock-collars-dumbbell-hex-nut-dumbbell-rod-nut
store_origin: JP
region: Japan
---

# 4pcs spinlock collars for secure grip Non-slip, durable plastic build Fits all 1-inch standard bars CALIDAKA 4pcs Spinlock Collars, Dumbbell Hex Nut, Dumbbell Rod Nut, 1 Inch Standard Barbell Screw Collar, Nonslip Dumbbell Screw Clamps for Dumbell Weight Lifting Fitness Training

**Brand:** calidaka
**Price:** ¥3332
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock in your gains, spin out the competition!

## Quick Answers

- **What is this?** CALIDAKA 4pcs Spinlock Collars, Dumbbell Hex Nut, Dumbbell Rod Nut, 1 Inch Standard Barbell Screw Collar, Nonslip Dumbbell Screw Clamps for Dumbell Weight Lifting Fitness Training by calidaka
- **How much does it cost?** ¥3332 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/321893733-calidaka-4pcs-spinlock-collars-dumbbell-hex-nut-dumbbell-rod-nut)

## Best For

- calidaka enthusiasts

## Why This Product

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

## Key Features

- • **Value Pack of Four:** Includes 2 pairs of collars so you’re always ready to upgrade your home gym or replace worn-out clamps without delay.
- • **Non-Slip Durable Material:** Crafted from robust plastic to ensure a firm grip and long-lasting performance under heavy lifting conditions.
- • **Quick-Spin Lock Mechanism:** Effortlessly secure and release weights with a smooth spinlock design that saves time during intense workouts.
- • **Enhanced Safety & Stability:** Keeps weight plates locked tightly in place, preventing slippage and promoting balanced, confident lifts every session.
- • **Universal Fit for 1-Inch Bars:** Seamlessly compatible with all standard dumbbell and barbell rods, eliminating the hassle of mismatched collars.

## Overview

The CALIDAKA 4pcs Spinlock Collars are precision-engineered dumbbell hex nuts designed for all 1-inch standard weightlifting bars. Featuring a quick and secure spinlock mechanism with non-slip durable plastic construction, these collars ensure your plates stay firmly in place during every lift. Ideal for fitness enthusiasts seeking reliable, easy-to-use, and versatile weight clamps, this 4-piece set offers exceptional value and safety for your strength training routine.

## Description

desertcart.com : CALIDAKA 4pcs Spinlock Collars, Dumbbell Hex Nut, Dumbbell Rod Nut, 1 Inch Standard Barbell Screw Collar, Nonslip Dumbbell Screw Clamps for Dumbell Weight Lifting Fitness Training : Sports & Outdoors

Review: Great for double nutting spin lock bars - Just got these, they fit Bollinger and Yes4All dumbbell handles. They have a slight oder like you smell in the fertilizer department in a home and garden store. I will be using these as lock nuts behind metal screw on collars. The threads are ok, they feel tighter on the Bollinger bars and looser on the Yes4Al bars, but they do tighten up. +
Review: Fits many bars with slightly different threads - These are great. I have a bunch of different bars and no collars that fit them all. These are loose enough that they fit them all and stay tight.

## Features

- Usage: Collars are easy and quick way to move your plates around, they also keep weight plates securely and safely while lifting.
- Application: For all 1 inch standard weight lifting barbells or dumbbell bars.
- Easy to Use: Easy and quick to remove, safe and secure to provide balance and stability.
- Durable: Made from robust and durable material for long lasting use.
- Package: Included 2 pairs of dumbbell hex nut for you to use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B093Q678YK |
| Batteries required | No |
| Best Sellers Rank | #84,691 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #69 in Exercise Collars |
| Brand | CALIDAKA |
| Customer Reviews | 4.0 4.0 out of 5 stars (298) |
| Handle Diameter | 1 inches |
| Handle Material | Plastic |
| Item Weight | 3.52 ounces |
| Item model number | 16196076136572 |
| Material | Plastic |
| Number of Items | 4 |
| Number of Pieces | 4 |
| Product Dimensions | 0.98"L x 0.98"W |
| Set Name | 4pcs Spinlock Collars |
| Special Feature | Non-Slip |
| Style | Fixed |

## Product Details

- **Brand:** CALIDAKA
- **Item Weight:** 0.1 Kilograms
- **Material:** Plastic
- **Product Dimensions:** 0.98"L x 0.98"W
- **Special Feature:** Non-Slip

## Images

![CALIDAKA 4pcs Spinlock Collars, Dumbbell Hex Nut, Dumbbell Rod Nut, 1 Inch Standard Barbell Screw Collar, Nonslip Dumbbell Screw Clamps for Dumbell Weight Lifting Fitness Training - Image 1](https://m.media-amazon.com/images/I/61uavx7jdIS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for double nutting spin lock bars
*by W***2 on August 25, 2024*

Just got these, they fit Bollinger and Yes4All dumbbell handles. They have a slight oder like you smell in the fertilizer department in a home and garden store. I will be using these as lock nuts behind metal screw on collars. The threads are ok, they feel tighter on the Bollinger bars and looser on the Yes4Al bars, but they do tighten up. +

### ⭐⭐⭐⭐⭐ Fits many bars with slightly different threads
*by J***S on December 31, 2025*

These are great. I have a bunch of different bars and no collars that fit them all. These are loose enough that they fit them all and stay tight.

### ⭐⭐⭐⭐⭐ They Actually Fit Old Dumbbell Handles
*by C***S on December 6, 2023*

First, the seller got these to me a day earlier than expected. Second, they actually threaded onto my old school dumbbell handles so for now they get 5 stars. I don't know what name brand my dumbbell handles are, I got them all second hand, but I think some may be CAP. I did try some of CALIDAKA's steel/chrome spin lock collars, but they would not thread on so I returned them. It's weird that their "plastic" spin lock collars work but their steel ones don't. The real question is will they hold up and not break with heavy weight. Since I have a 30-day free return guarantee from Amazon I will be testing the hell out of these and if they pass, I will be purchasing more. Now I mainly use my dumbbells with this type of spin lock collar for bench presses so I will be drop testing these from about 40 inches or so to see if they break. I will update this review with pictures whether they break or not to let others know who are interested in these collars. Stay tuned. UPDATE: They broke after the first drop. Tested these collars the next day from around 40 inches with only 45lbs on the dumbbells and they snapped. Not really surprised because they are plastic, but I was hoping they would last more than one drop test. I even tried NOT to drop them at an angle, just straight down but apparently it didn't matter. From the pictures you can see my "gym" is an outdoor one and the ground was nice and soft, probably even softer than stall mats. I don't know if I would recommend these since they broke so easily, and I don't know how much temperature would affect these mainly the cold. Maybe you could use these on lighter dumbbells but for me, I use all my threaded dumbbells handles on my 40lbs and 50lbs and wanted the extra security of threads, so plates won't accidently fall on my face while pressing. Well, I hope this review will help others interested in these collars.

## Frequently Bought Together

- CALIDAKA 4pcs Spinlock Collars, Dumbbell Hex Nut, Dumbbell Rod Nut, 1 Inch Standard Barbell Screw Collar, Nonslip Dumbbell Screw Clamps for Dumbell Weight Lifting Fitness Training
- CAP Barbell 14" Regular Dumbbell Handles | Multiple Options

---

## 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.jp/products/321893733-calidaka-4pcs-spinlock-collars-dumbbell-hex-nut-dumbbell-rod-nut](https://www.desertcart.jp/products/321893733-calidaka-4pcs-spinlock-collars-dumbbell-hex-nut-dumbbell-rod-nut)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-05*