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Screw size for Bosch 1617 base plate

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Forum topic by josh0410 posted 03-07-2019 11:01 PM 461 views 1 time favorited 12 replies Add to Favorites Watch
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josh0410

4 posts in 47 days


03-07-2019 11:01 PM

I have purchased a Bench Dog base plate and am making a router table for my Bosch 1617

I’m having a really tough time finding the correct screws to fit in the holes that the base plate aligns with. None of the provided screws work.

It is close to 8/32 but not quite. It goes in a turn or so but then gets too tight. I went to Lowe’s and had an associate open up several boxes of screws that might work but none did. Totally stumped.

Anyone know what this is?

Thanks.


12 replies so far

View bondogaposis's profile

bondogaposis

5324 posts in 2683 days


#1 posted 03-07-2019 11:17 PM

I can’t say for sure the size, but I do know that it is metric.

-- Bondo Gaposis

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WhyMe

1140 posts in 1893 days


#2 posted 03-08-2019 12:35 AM

I’m fairly sure it’s a 4MM-0.7. At least that’s what I measured one to be from my 1617.

View DannyW's profile

DannyW

107 posts in 129 days


#3 posted 03-08-2019 01:55 AM

If it is like the Bosch router table, the holes for attaching to the table’s mounting plate (3 holes) are not the same ones that are used for mounting to the plastic face plate (4 holes). I don’t know but the sizes may be different as well. It took me a while to realize this when putting my router table together.

-- -DannyW

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josh0410

4 posts in 47 days


#4 posted 03-08-2019 02:07 AM

Yeah. It’s definitely not the M4 0.7. There are 4 screw holes that these will fit but the ones that the router plate mounts to are different and apparently not a very common size/thread – at least not something carried at the box stores.

I’m really stumped.

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WhyMe

1140 posts in 1893 days


#5 posted 03-08-2019 04:17 AM

On mine the M4-0.7 fits all the holes but two. The two different ones are M5-0.8. I will say the holes other than the four the sole attaches by were a little funky getting started but once started I could screw the M4’s in by my fingers. I think the holes threads were just crusty from saw dust.

Edit: Did a web search and found others that say the screws are M4-0.7 and M5-0.8.

View Woodmaster1's profile

Woodmaster1

1155 posts in 2919 days


#6 posted 03-08-2019 11:51 AM

Take the router to your local hardware store not the big box store. The hardware store usually has a very knowledgeable person working that can help you out. My hardware stores owner has come across any problem that have had and always has a good solution.

View Woodbum's profile

Woodbum

866 posts in 3397 days


#7 posted 03-08-2019 02:29 PM

+1 for Woodmaster1. The typical clerk in Big Blue and Big Orange are lucky to know the difference between metric and standard. Take WHYME’s advice or try a good hardware store or an industrial supply house that have personnel with the knowledge to assist you.

-- "Now I'm just another old guy wearing funny clothes"

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WhyMe

1140 posts in 1893 days


#8 posted 03-08-2019 02:56 PM

I pulled out my plunge base for my 1617 and all the holes in that are also M4-0.7. I rest my case.

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josh0410

4 posts in 47 days


#9 posted 03-08-2019 03:12 PM

Thanks for all the replies. I’m going to take the router by Fastenal today and see if they can find something.

I’m fairly certain I tried an M5 yesterday and it was too large. Again, I’m not arguing that four of the holes are M4-.07 but the three that align with the bench dog base are something different.

View DannyW's profile

DannyW

107 posts in 129 days


#10 posted 03-08-2019 04:47 PM

According to my Bosch router table manual the screws are 10-24×3/4″ Phillips machine screws. Your length may be difference but the size and thread (10-24) should be correct.

-- -DannyW

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josh0410

4 posts in 47 days


#11 posted 03-08-2019 07:06 PM

10-24 did it.

I really don’t know how I missed that.

Thanks again for the help.

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WhyMe

1140 posts in 1893 days


#12 posted 03-08-2019 07:44 PM

Well..liar liar my pants are on fire. I tried the 10-24 in the three holes and they fit perfectly. I don’t know why the M4’s seem to fit other than maybe the sawdust crud helped take up some slack.

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