do these fit threaded curl bars?

I don't know what threaded curl bars are, but if it helps, the collar openings are 1.25" open and 1.125" closed and fit the standard bars we use for Les Mills Body Pump.

what diameter light has to do thick bar serve?

I have the Troy Lite barbell which has a 1" diameter bar and the 1" Lock-Jaw Collar works perfectly. I think, as mentioned here, Olympic bars have a thicker diameter bar.

I have 28mm (not 1 inch) smooth bars. Will these fit?

On a 1 1/16" bar they are a tight fit. Since a 28 mm bar is equivalent to about 1 7/64" I doubt that they would fit.

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ironcompany Lock-Jaw 1 Inch Barbell Collar Pair Black

Product ID: 2148232

Details

Brand
ironcompany
Finish Type
Black
Grip Size
1
Grip Type
Knurled
Item Weight
3.84 ounces
Manufacturer

🔒1" standard bar fit

⏱️Fast locking & release

⚙️Solid injection molded frame

€ 29.83

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔒 Lock in your gains, unlock your potential!

LIGHTWEIGHT POWER - Only 4 ounces per set, combining strength with effortless handling during intense sessions.
TRUSTED SINCE 1986 - Backed by a 3-year limited warranty and a legacy of professional-grade fitness gear.
RAPID LOCK RELEASE - Single-action cam lock mechanism ensures swift, secure adjustments—no wasted time.
UNIVERSAL 1 INCH FIT - Seamlessly clamps all standard barbell sleeves for instant workout readiness.
UNBREAKABLE DURABILITY - Crafted with a solid nylon resin frame and injection molded pads to endure your toughest lifts.

The ironcompany Lock-Jaw 1 Inch Barbell Collar Pair offers a robust, injection molded nylon resin frame designed for standard 1-inch barbell sleeves. Featuring a fast single-action cam lock for secure and quick adjustments, these collars deliver exceptional durability and lightweight convenience at just 4 ounces per set. Trusted by fitness enthusiasts since 1986, they come with a 3-year limited warranty, making them a professional-grade essential for serious lifters.

Specifications

ASIN	B00HFAJZK4
Best Sellers Rank	#25,583 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #21 in Exercise Collars
Brand Name	ironcompany
Customer Reviews	4.6 4.6 out of 5 stars (1,122)
Finish Type	Black
Global Trade Identification Number	00753182418711
Grip Size	1
Grip Type	Knurled
Item Dimensions L x W	2"L x 1.25"W
Item Weight	3.84 ounces
Manufacturer	Ironcompany.com
Material	Alloy Steel
Model Number	50478
Mounting Hole Diameter	1 inches
Number of Items	1
Part Number	50478
UPC	634392199549
Weight Capacity Maximum	4 ounces

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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I loved the variety of products available. Will definitely shop again.

2 months ago

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€ 29.83

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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