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Jet Riser Block - bolt size?

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Forum topic by BFamous posted 04-19-2019 10:39 PM 200 views 0 times favorited 5 replies Add to Favorites Watch
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BFamous

315 posts in 485 days


04-19-2019 10:39 PM

Does anyone happen to know the correct bolt size for a Jet riser block? I’ve found a riser block set from a local guy for cheap – but the kit doesn’t have the longer bolt. Was thinking I might be able to use a standard bolt if I knew the proper size…

-- Brian Famous :: Charlotte, NC :: http://www.FamousArtisan.com


5 replies so far

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bilyo

663 posts in 1467 days


#1 posted 04-20-2019 12:46 AM

I put a riser block on my Delta (similar I think) a number of years ago and had to buy the bolt from a local seller of fasteners. It is the same diameter as the original bolt (3/4”), 9” long, and is of high strength steel (probably doesn’t need to be). I also got some thick flat washers to go top and bottom. I think the bolt was just under $10.

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BFamous

315 posts in 485 days


#2 posted 04-20-2019 01:02 AM

Thanks bilyo. I think I found the part number SH608403, and the size is actually 5/8-11 – 8.5” according to the one parts list I found… Though I may take what you hinted at and just use the existing bolt to get the diameter, plus I don’t think getting a 9” one should hurt even if it is supposed to be 8.5…

-- Brian Famous :: Charlotte, NC :: http://www.FamousArtisan.com

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bilyo

663 posts in 1467 days


#3 posted 04-20-2019 02:50 AM

Yes. Mine has at least 1/2” of extra length. Don’t remember but it might be that it was the closest length available to what I needed.
Good luck.

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therealSteveN

2633 posts in 939 days


#4 posted 04-20-2019 03:10 AM

Check at a Tractor Supply if they are local to you. Mine has a good selection of grade 8 bolts/nuts. You are looking for bolts with 6 radially placed slashes on the head of the bolt.

I would use a 9” if available, there is plenty of room for that overage, and loose, you won’t be fighting to get it started. Either 1/2” which would be a lot easier to source, or 5/8 will do fine, most of the stress will be on the washers. Buy the heaviest that will fit.

The hole the bolt passes thru is not threaded, so you can use a caliper to size the hole, just in case my saw, and yours has different sizing. I would be surprised if it did, but…..

-- Think safe, be safe

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BFamous

315 posts in 485 days


#5 posted 04-20-2019 10:38 AM

Thanks Steve N. Didn’t think of checking Tractor Supply, they usually do have a good selection of large size bolts…

-- Brian Famous :: Charlotte, NC :: http://www.FamousArtisan.com

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