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Ohio Forge Bandsaw - Left Hand Thread Screw

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Forum topic by KlinkSanford posted 06-07-2018 11:54 PM 899 views 0 times favorited 3 replies Add to Favorites Watch
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KlinkSanford

3 posts in 409 days


06-07-2018 11:54 PM

I picked up an Ohio Forge 14” Model 510-556 bandsaw for $40. It has a table and pretty much everything. The problem is that the bottom wheel is missing the left hand thread screw. I’ve researched extensively online and all the Taiwan 14” bandsaws that use the left hand screw rather than a nut, all use a metric M8×25 but the hole for the screw on mine is much smaller. I located a 1/4”- 20 left hand thread screw which looked like the right thread and size but it is not the same thread. The only way for me to find out the size of the screw is by buying a bunch of metric sizes, not easy to do in left hand threaded screws.

I also need to know what it is in order to tap the beginning of the threads as someone likely tried a right hand screw and banged up the first 2 threads.

from measuring the hole, I think it is an M7×1, and I ordered some on Ebay, but won’t get them till the end of the month.

Anyone know what this screw size is? Is there a Taiwan Delta clone that uses something smaller than the M8×25 hex head screw?


3 replies so far

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KlinkSanford

3 posts in 409 days


#1 posted 06-19-2018 09:33 PM


from measuring the hole, I think it is an M7×1, and I ordered some on Ebay, but won t get them till the end of the month.

I received the M7×1.00 pitch and the thread is too fine. The threads on the shaft look like 20TPI so I’ll just tap it to 1/4-20

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KlinkSanford

3 posts in 409 days


#2 posted 07-23-2018 11:34 PM

I bought a M6×25mm long 1.00 mm pitch Left Hand Thread Hex Head Bolt at Ebay and it worked. The threads at the beginning of the hole are damaged from prior owners fiddling with it, but I was able to get the bolt to reach the good threads and it went in.

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BobAnderton

294 posts in 3211 days


#3 posted 07-24-2018 02:07 AM

Thanks for the follow up. Someday someone will benefit when they do a search.

-- Bob Anderton - Austin, TX - Nova 3000 lathe, Alaskan Mark III mill, Husqavarna Saw

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