Ken Lau

[Ken Lau]

Hi TC, I checked my screws and they are indeed 20 tpi. I got a few ordered from ebay. But thanks for your kind offer.

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Marc H

[Ken Lau]

Hi Marc

Thanks for the tips. I don’t have any decent hardware stores near me that will sell this type of screw. My best bet is ebay but I’ll need to check the thread pitch. If its 28 threads per inch, that’s a UNF screw. If it’s 20 tpi, it’s UNC. I’m not sure if I have an imperial pitch gauge. Must check later . I think that it’ll be easier to me to buy a few long ones and grind them to size! Shame that there aren’t a few screws thrown in as extras.

 

Cheers again

Ken

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