Using SAE Screws instead of Metric 🇬🇧

19 May 2020 17:20

I am having a hard time sourcing Metric screws without a paying a fortune for them.  Would there be any issues with using the equivalent SAE size screws instead of Metric.  (ie. 8-32 Screw versus a M4 Screw)

Are there certain areas that need the metric sizes?

Thanks

19 May 2020 20:39

Looks like the screws for T-nuts need to be metric.  Can't find non metric T-Nuts


19 May 2020 20:45

I'm sorry i dont know, I use metric screw only... cant you buy screws / tnut on aliexpress or amazon ?


21 May 2020 07:08

Yes I can.   I was just trying to avoid spending about $100 for fasteners when I can buy SAE fasterners for the entire project for under $25.00.  I found a place to order the metrics ones for about $70 bucks so I will probably go with that.  In Canada we primarily use the metric system but when it comes to screws and lumber it is still in inches and feet.

just thought I would check! 

Thanks


22 May 2020 01:18

DewaltGuy, I had the same issue and went to a local hardware store and left without my wallet.  It hurt alot.  Then I realized I had a Fastenal nearby and I paid a third for the hardware as I had paid at the local store.  They were nice and ran me under a cash account if it made a difference on pricing I do not know.  The had picked all the hardware for me and sealed it in small bags with sizes written on them as COVID is still affecting them locally.  I had to call in my order, they pulled it all, then met me at the door with the total.  I paid 120 at local store and it would of probably cost me like 60 for all I had purchased if it was all done at Fastenal.  I would recommend you buying a few extra of each screw if making the original CNC not the heavy as the screw listing seems to not account for the add-ons in 1.2 thru 1.4.

29 May 2020 15:26

Thanks for the advice.  I tried contacting Fastenal here but they haven't returned my call or responded to my emails.  Frustrating. I did find most of the screws I need from Spool3d.ca.  So I may get them from there.


01 Jun 2020 16:04

you might also want to try tacoma screw they have good source of lead screws. I purchased mine from ZYLtech quick shipping and well protected.

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