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E-Coat Machined Iron Weight Plates

Machined iron weight plates with a gorgeous, glossy black e-coat for ultra rust resistance and precise 50.5mm center hole.

Guaranteed weight tolerance of +/- 1% for 25-45lbs and +/- 3% for 2.5-10lbs.





Choose Your E-Coat Machined Iron Weight Plates

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E-Coat Iron Weight Plates — machined and coated to perfection.

Thought our original Machined Plates couldn’t get any better? Think again.

Our e-coat weight plates have the same 1-3% guaranteed accuracy and 50.5mm center hole as our original Machined Iron Weight Plates, but now with a glossy black e-coat.

Benefits of the E-Coat Weight Plates

    If you know that a bare steel powerlifting bar would rust in your humid home gym, then do we have you covered. The thin electro-coating (e-coat) on our e-coat weight plates gives excellent rust resistance. So you can sweat  — or cry — on them between sets without worry.
    These machined plates are a guaranteed tolerance of +/- 1% for 25-45lbs, and +/- 3% for 2.5-10lbs. However, in our strict quality control and inspection, most plates are under that tolerance, and many fall within 10 grams of the claimed weight.  If you’re looking for excellent quality but a less precise plate, be sure to check out our E-Coat Mighty Grip Iron Plates.
    Inferior plates have inconsistent center hole sizes, allowing them to rattle and shift around while you’re lifting. Not only is readjusting them after each set annoying, but they can also damage your barbell sleeves over time. Our e-coat weight plates are precision-drilled with a guaranteed hole diameter of 50.5mm +.4mm tolerance, giving your plates that perfect fit.
    So, you’re not a huge fan of the gray hammertone color on our original machined plates? No biggie. The all-black color on these e-coat iron weight plates will upgrade your space by becoming the sleek centerpiece of your home gym.


BrandBells of Steel
Weight2.5 up to 45lbs
Plate DiameterVaries
Hole Diameter50.5mm/1.99"
MaterialCast Iron
Warranty5-Year Warranty

IMPORTANT: Although the coating on these e-coat plates is more durable and rust-resistant than a powder coat, it can still be scratched.

Outfitting your commercial gym?
Customized plates with your brand’s logo on them are available for bulk orders.
 Contact Us 

Dimensions Guide

Weight (lbs/kg)Weight Tolerance %Tolerance +/- GramsDiameter (+-.5mm tolerance)Thickness (in/mm)
Weight Tolerance %1%
Tolerance +/- Grams204
Diameter (+- .5mm tolerance)450
Thickness (in/mm)1.2/31
Weight Tolerance %1%
Tolerance +/- Grams159
Diameter (+- .5mm tolerance)354
Thickness (in/mm)1.2/31.5
Weight Tolerance %1%
Tolerance +/- Grams113.5
Diameter (+- .5mm tolerance)277
Thickness (in/mm)1.3/34
Weight Tolerance %3%
Tolerance +/- Grams204
Diameter (+- .5mm tolerance)257
Thickness (in/mm)0.8/22.2
Weight Tolerance %3%
Tolerance +/- Grams136
Diameter (+- .5mm tolerance)226
Thickness (in/mm)0.89/22.7
Weight Tolerance %3%
Tolerance +/- Grams68
Diameter (+- .5mm tolerance)197
Thickness (in/mm)0.6/15
Weight Tolerance %3%
Tolerance +/- Grams34
Diameter (+- .5mm tolerance)135
Thickness (in/mm)0.6/14

5-Year Light Commercial Warranty
against breakage.

Features and Benefits

Natural Texture

Originally made for the automotive industry, e-coating has become increasingly popular due to its great durability and excellent rust resistance. Although it’s applied in a thin layer, the smooth texture still allows the natural grit of the iron underneath to be felt.

Easy to Clean

Thought that glossy e-coat was just pretty to look at? Oh, silly you. Since the coating binds directly to the iron in a smooth layer, it has fewer grooves for chalk, sweat and bacteria to hide. One quick wipe and your plates are squeaky clean.

20% Thinner Width

Our 45-pound plates are only 1.2 inches (31mm) thick— about 20% thinner than the industry standard. Combined with our powerlifting bar, you’ll be able to add over 700 pounds to the bar in plates and still have plenty of room to spare on the sleeve.

40 Years of Experience

Our machined iron plates are cast in a specialty casting factory with over 40 years of experience, for reliable quality and workmanship that you can trust.

Frequently Asked Questions

An electrocoat (e-coat) is a coating where the paint is applied using an electric charge, instead of being sprayed on.

E-coating is more durable and rust-resistant than a powder coat. Since it’s applied electronically, the coating is thinner, smoother, and easier to clean. Overall, e-coating is better than powder coating.

The e-coat weight plates have a black, glossy e-coating on them.

Yes, the thin layer of glossy e-coat makes these e-coat weight plates more slippery than plates with sprayed-on paint.

Covered under our Limited Lifetime Warranty, your e-coat weight plates are protected against defects in material, function and workmanship.

Customer Reviews
5.0 Based on 5 Reviews
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Filter Reviews:
  • garage gym setup
  • gloss
  • e-coat
  • Marker
  • pound plates
  • lettering
  • finish
  • money
  • weights
Eric M.

45lb e-coat plates

Customer service is excellent! The price is great! The weight of the plates is very accurate and the E-coat will be great for my shed gym. I would definitely recommend them to anyone looking for accurate durable plates.

  • My Fitness Goal Is: Strength-increase one rep max on squat, bench, deadlift and log press

Bells of Steel

We greatly appreciate you feedback! The machined plates are guaranteed to be within 1% tolerance. These plates will make sure you're lifting what you think you're lifting, no cheating! Enjoy the gains! Erica and the B.o.S Crew!

United States United States

I love these plates!

I absolutely love these E-coat machined weight plates! They have a gorgeous gloss E-coat black finish, were reasonably priced, and are extremely accurate in their listed weights. I weighed two of my 45 pound plates and they both weigh exactly 45 pounds on the money! I also used an orange oil based marker to color in the lettering. Looks great and works well with my new garage gym setup. 100% would recommend these!

  • My Fitness Goal Is: Hit a 500 pound deadlift.
Bells of Steel E-Coat Machined Iron Weight Plates Review

Bells of Steel

Hey Andrew, We are so happy you love the plates and the paint job you did looks amazing! We keep our plates as accurate as possible without training to break the bank William & BOS Team

Grant C.

better than gray

entirely machined, right at the stated weight, and pretty in their black e-coat


Bells of Steel

Grant, Thank you for the great review! That e-coat is stunning. Enjoy the gainz. -Belll of Steel

Grant C.

Beats the heck out of gray

Very pretty, entirely machined, and weighed within the stated variance in weight.


Bells of Steel

Grant, "weighed within the stated variance in weight." We strive to make sure our plates have tight tolerances with an economical plate. Enjoy the plate gainz! -Belll of Steel

Grant C.

better than gray

Very pretty, entirely machined, and weighed within the stated variance in weight.


Bells of Steel

Grant, Thank you for another terrific review! -Belll of Steel