Contact McMaster-Carr

Contact McMaster Carr Support


Company Name:

About: McMaster-Carr is the complete source for everything in your plant. Order over
800,000 products from the palm of your hand.


 
  2026-03-18

McMaster Carr Customer Service 💢

The following contact options are available: Pricing Information, Support, General Help, and Press Information/New Coverage (to guage reputation). Discover which options are the fastest to get your customer service issues resolved.



Verified email ✔✔

E-Mail: [email protected]

Website: 🌍 Visit McMaster-Carr Website

Privacy Policy: https://www.mcmaster.com/termsandconditions/

Developer: McMaster-Carr Supply Company




Privacy & Terms:

https://www.mcmaster.com/#terms





3 Most reported problems 😔💔

4.3 out of 5

It’s a great app if you have the eyes of a 12 year old.

2025-03-10

by RichfromLA

There are only a handful of apps out there that do not allow the user to increase the font or text size. McMaster Carr is one of the few dinosaurs. That is correct, it will not increase the font size even in iOS 15. I have joined the team to review new versions, and frequently asked about the ability to increase the font size, and was told it was not in the plan. It’s an absolutely amazing company with an absolutely amazingly bad app; it just doesn’t make sense.

You better know!

2025-03-11

by Thisusernamewastakensoididthis

My problem with this app is it’s not as user friendly as the website. You clearly had great staff setup the normal website but the app was something else. I just don’t care for the super refined selection that they make you do in order to look at what you want. This leaves no room for other options beside exactly and I mean exactly what your looking for. Why force into extreme refinement before letting the customer look first? It just maybe me tho.

Great supplier, poor image handling

2025-03-12

by FM_M

I find the app a little clearer to use than their website, but they treat images as non-zoomable static size. I find myself constantly going back to their web site (another: why does it offer to copy the web link but not also offer to just GO to the web link. Makes what could be a single operation into copy, switch apps to safari, create a new tab, paste. Just have a 4th button to go there!) so that I can see the exact same information, except that when I pinch and zoom on the image, it does.

If they wrote this in Xcode like they should have, these changes would be trivial to make. Hope to see them soon.




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  1. Pulling issues faced by users like you is a good way to draw attention of McMaster-Carr to your problem using the strength of crowds. We have over 1,000,000 users and companies will listen to us.
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  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
  4. If you are a McMaster-Carr customer and are running into a problem, Justuseapp might not be the fastest and most effective way for you to solve the problem but at least you can warn others off using McMaster-Carr.


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