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Grubby Screws!

Imperial sized grub screws

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Rockingdodge19/09/2021 16:38:25
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288 forum posts
53 photos

Hi,

I have a couple of holes threaded ME 1/4" x 32, I thought I had some grub screws to fit but apparently not, the ones in my tub marked as 1/4 by 32 are too small, duh!

What size grub screws do I look for, 10-32?

Cheers

Roger

JasonB19/09/2021 16:43:30
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Moderator
21435 forum posts
2448 photos
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10-32 is too small as they are only about 3/16" OD and wrong thread angle. You will probably have to thread some rod and make do with a slot rather than a hex socket

not done it yet19/09/2021 18:37:34
6322 forum posts
20 photos

Try GWR fasteners on ebay?

peak419/09/2021 18:53:58
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1485 forum posts
162 photos

Wrong thread angle, but Connex claim to do 1/4" UNEF

https://www.conexscrews.com/product/Grub-Screws-Brass-Socket-head-screws-Brass-DIN-915-916--Set-screws.html

Bill

Rockingdodge19/09/2021 19:26:00
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288 forum posts
53 photos

I've decided to drill out and thread for M8 rather than mess around with making some that would have an inherent weakness of a slotted head.

Thanks for all your advice chaps.

Roger

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