---
product_id: 139119799
title: "Climax Metal C-100 Shaft Collar, Zinc Plated Steel, Set Screw Style, One Piece, 1\" Bore, 1-1/2\" OD, 5/8\" Wide, with 5/16-18 Set Screw"
brand: "aivoxe"
price: "306221₫"
currency: VND
in_stock: true
reviews_count: 12
category: "Aivoxe"
url: https://www.desertcart.vn/products/139119799-climax-metal-c-100-shaft-collar-zinc-plated-steel-set
store_origin: VN
region: Vietnam
---

# Precision 1" bore fit Set screw locking strength Zinc plating corrosion resistance Climax Metal C-100 Shaft Collar, Zinc Plated Steel, Set Screw Style, One Piece, 1" Bore, 1-1/2" OD, 5/8" Wide, with 5/16-18 Set Screw

**Brand:** aivoxe
**Price:** 306221₫
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in your gains with precision and durability!

## Quick Answers

- **What is this?** Climax Metal C-100 Shaft Collar, Zinc Plated Steel, Set Screw Style, One Piece, 1" Bore, 1-1/2" OD, 5/8" Wide, with 5/16-18 Set Screw by aivoxe
- **How much does it cost?** 306221₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/139119799-climax-metal-c-100-shaft-collar-zinc-plated-steel-set)

## Best For

- aivoxe enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Durability:** Crafted from alloy steel by Climax Metal Products, a leader with 60+ years of quality assurance.
- • **Rock-Solid Shaft Grip:** Precision 1" bore ensures zero play for a secure hold on your barbell or shaft.
- • **Effortless Installation:** One-piece design with set screw style allows quick adjustments without major disassembly.
- • **Versatile Compatibility:** Works effectively on both hard and soft shafts, saving you from costly replacements.
- • **Corrosion-Resistant Finish:** Zinc plating offers moderate protection against rust, keeping your gear looking sharp.

## Overview

The Climax Metal C-100 Shaft Collar is a high-quality, zinc-plated alloy steel collar designed for 1" shafts. Featuring a set screw locking mechanism, it provides a secure, no-wiggle fit that’s easy to install and adjust. Its corrosion-resistant finish and robust build make it ideal for both hard and soft shafts, ensuring long-lasting performance trusted by professionals for over six decades.

## Description

Simply slide these collars onto a shaft and tighten the set screw to hold the collar in place. Collars are easy to adjust with their set screws. Made of carbon steel with a Black-Oxide finish to offer mild corrosion resistance. Our shaft collars are available in several different styles to meet you or your customer’s needs. Climax Metal Products Co. in business for over 60 years is the leading manufacturer of shaft collars, rigid couplings & keyless locking assemblies. Climax Metals, where fair market pricing and excellent customer service is our promise to you.

Review: Caution: Will not fit ALL so-called “1-inch bars.” - I can’t fault the seller that these collars didn’t fit on all my 1-inch bars. The specs are posted. However, it seems not all 1-inch bars are exactly 1-inch in diameter after all. I used these Climax collars on an old EZ-curl bar with threads/collars worn so badly they no longer tighten down completely. Also, one of the plate stops had come loose over the years. I used one on each side to make the weight-plate placement equal, and another one on each side to keep the screw-collars from backing out — four in all, and saved me the cost of buying an expensive new EZ-curl bar. Although fitting easily on that bar and another older threaded type bar, they were too tight on my newer, threaded dumbbell bars and on my older slide-collar type bars. The original collars for the latter measured about 1.050”. Obviously, these Climax collars weren’t designed for this particular 1-inch application in the first place. They also didn’t fit over the 1-inch round rolled-steel bar stock I’d used on my old homemade cable lat low-row machine built 28 years ago. I measured these bars with precision dial calipers (0.001” accurate) and discovered that they are not perfectly round, hence not precisely 1-inch in diameter. Varying by plus or minus 20 thou, depending on the point of measurement. This also proved to be the case with the older slip-on collar type barbell and dumbbell bars. I decided to try drilling them [collars] out to 1/32” over with an electric drill, my drill press being broken, but the attempt failed. Bad idea! A better one was to use a high-speed rotary grinder and grinding stone. This took a few minutes for each collar but worked well enough and didn’t really cost me anything except a little time. Despite that minor hassle, these are excellent quality collars. I’m now using them on several threaded bars to prevent the damned screw-collars from coming loose all the time. Although they’re not going to work on every so-called 1-inch bar, for me they turned out to be a decent deal considering there’s not much more than high-priced options of dubious quality [plastic] out there these days. They require a 5/32”, or 4mm Allen key for the set screw.
Review: Rock solid on 1" barbell - I had cut down a 1" steel bar for my wife so she could do cardio lifing. I used these for the inner retainers for the barbell weights. This was the perfect, straightforward solution. Perfect Fit: The 1" bore fit my shaft precisely, with zero play or wiggle room, which is exactly what you want for a secure connection. Strong Grip: The set screw style provides excellent holding power. Once I blue locktited and tightened it down the collar stayed exactly where I needed it. Durable Build: It feels very sturdy and I'm not worried about rust or corrosion in my application. Simple and Effective: It's a simple, one-piece design that works exactly as advertised without any complicated parts.

## Features

- Effective on hard and soft shafts
- Cost effective collar design
- Easily installed where major disassembly would otherwise be required
- Tolerance: +.0005/+.0030
- Zinc plating provides moderate corrosion resistance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000IL5GGO |
| Best Sellers Rank | #189,198 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #47 in Set-Screw Shaft Collars |
| Brand | Aivoxe |
| Color | Silver |
| Connector Type | Shaft Collar |
| Date First Available | April 1, 2006 |
| Exterior Finish | Zinc |
| Global Trade Identification Number | 00044861011126 |
| Item Weight | 2.72 ounces |
| Item dimensions L x W x H | 1.6 x 1.6 x 0.7 inches |
| Item model number | C-100 |
| Manufacturer | Climax Metal Products |
| Material | Alloy Steel |
| Number of Pieces | 1 |
| Product Dimensions | 1.6 x 1.6 x 0.7 inches |
| Set Name | Pack of 1 |
| Size | Pack of 1 |
| Thread Size | 1 inches |
| Thread Type | UNF |
| UPC | 769897689223 044861011126 044861002506 |

## Product Details

- **Brand:** Aivoxe
- **Color:** Silver
- **Connector Type:** Shaft Collar
- **Exterior Finish:** Zinc
- **Item Weight:** 2.72 ounces
- **Item dimensions L x W x H:** 1.6 x 1.6 x 0.7 inches
- **Material:** Alloy Steel
- **Size:** Pack of 1
- **Thread Size:** 1 inches
- **Thread Type:** UNF

## Images

![Climax Metal C-100 Shaft Collar, Zinc Plated Steel, Set Screw Style, One Piece, 1" Bore, 1-1/2" OD, 5/8" Wide, with 5/16-18 Set Screw - Image 1](https://m.media-amazon.com/images/I/41qfa-A3RCL.jpg)
![Climax Metal C-100 Shaft Collar, Zinc Plated Steel, Set Screw Style, One Piece, 1" Bore, 1-1/2" OD, 5/8" Wide, with 5/16-18 Set Screw - Image 2](https://m.media-amazon.com/images/I/51RhshAFDxL.jpg)
![Climax Metal C-100 Shaft Collar, Zinc Plated Steel, Set Screw Style, One Piece, 1" Bore, 1-1/2" OD, 5/8" Wide, with 5/16-18 Set Screw - Image 3](https://m.media-amazon.com/images/I/610ar97IfFL.jpg)
![Climax Metal C-100 Shaft Collar, Zinc Plated Steel, Set Screw Style, One Piece, 1" Bore, 1-1/2" OD, 5/8" Wide, with 5/16-18 Set Screw - Image 4](https://m.media-amazon.com/images/I/81vOGd2nYpL.jpg)

## Questions & Answers

**Q: I have typical US made dumbells but they're about 1 and 1/16 diameter.  Is this diameter collar available anywhere?**
A: They do make them. I would just Google 1 1/16” shaft collar.

**Q: So these measure one inch inside bore diameter?**
A: Mine are one inch on inside.

**Q: Will this fit an Olympic bar as a spacer?**
A: It depends what the diameter of an Olympic bar is.  I do not know.  I used these to slid onto a 1” diameter metal rod and it was a very very tight fit.

**Q: Can you use these on a dumbell where the inner collar came loose ?**
A: For safety reasons, I'd try one and see how it works for your purpose. I've seen too many such collars fail from becoming loose with usage.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Caution: Will not fit ALL so-called “1-inch bars.”
*by R***T on February 24, 2022*

I can’t fault the seller that these collars didn’t fit on all my 1-inch bars. The specs are posted. However, it seems not all 1-inch bars are exactly 1-inch in diameter after all. I used these Climax collars on an old EZ-curl bar with threads/collars worn so badly they no longer tighten down completely. Also, one of the plate stops had come loose over the years. I used one on each side to make the weight-plate placement equal, and another one on each side to keep the screw-collars from backing out — four in all, and saved me the cost of buying an expensive new EZ-curl bar. Although fitting easily on that bar and another older threaded type bar, they were too tight on my newer, threaded dumbbell bars and on my older slide-collar type bars. The original collars for the latter measured about 1.050”. Obviously, these Climax collars weren’t designed for this particular 1-inch application in the first place. They also didn’t fit over the 1-inch round rolled-steel bar stock I’d used on my old homemade cable lat low-row machine built 28 years ago. I measured these bars with precision dial calipers (0.001” accurate) and discovered that they are not perfectly round, hence not precisely 1-inch in diameter. Varying by plus or minus 20 thou, depending on the point of measurement. This also proved to be the case with the older slip-on collar type barbell and dumbbell bars. I decided to try drilling them [collars] out to 1/32” over with an electric drill, my drill press being broken, but the attempt failed. Bad idea! A better one was to use a high-speed rotary grinder and grinding stone. This took a few minutes for each collar but worked well enough and didn’t really cost me anything except a little time. Despite that minor hassle, these are excellent quality collars. I’m now using them on several threaded bars to prevent the damned screw-collars from coming loose all the time. Although they’re not going to work on every so-called 1-inch bar, for me they turned out to be a decent deal considering there’s not much more than high-priced options of dubious quality [plastic] out there these days. They require a 5/32”, or 4mm Allen key for the set screw.

### ⭐⭐⭐⭐⭐ Rock solid on 1" barbell
*by W***G on November 13, 2025*

I had cut down a 1" steel bar for my wife so she could do cardio lifing. I used these for the inner retainers for the barbell weights. This was the perfect, straightforward solution. Perfect Fit: The 1" bore fit my shaft precisely, with zero play or wiggle room, which is exactly what you want for a secure connection. Strong Grip: The set screw style provides excellent holding power. Once I blue locktited and tightened it down the collar stayed exactly where I needed it. Durable Build: It feels very sturdy and I'm not worried about rust or corrosion in my application. Simple and Effective: It's a simple, one-piece design that works exactly as advertised without any complicated parts.

### ⭐⭐⭐⭐⭐ Set screw is not 5/16-18, it is 5/16-24
*by D***. on October 13, 2024*

Quality of the collar is nice, it has a clear zinc finish. The set screw (grub screw for our UK friends) is actually 5/16-24, not 5/16-18. I see not only is this listed wrong in the product headline, but the attached dimensioned drawing also gives the wrong 5-16-18 thread. If you search for the C-100 collar at the Climax Metals catalog you'll see the correct 5/16-24 thread specified. The set screw has the expected 5/32" internal hex, and the finish looks like a black phosphate so this won't hold up well in a wet application. Decent product, I wish the country of origin was listed.

## Frequently Bought Together

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-06*