LumberJocks

Pocket Hole question

  • Advertise with us

« back to Joinery forum

Forum topic by ScottKaye posted 09-24-2014 03:20 PM 936 views 0 times favorited 7 replies Add to Favorites Watch
View ScottKaye's profile

ScottKaye

471 posts in 1413 days


09-24-2014 03:20 PM

I’m in the middle of putting together a multi purpose table (outfeed/assembly/planer table) and I ran across an unexpected issue I was hoping someone could help me out with.
I am using inch and half thick maple stock ( two – 3/4” pieces glued up) as stretchers between the table legs. I’m using the Kreg pocket hole system to join the stretchers together and according to Kreg, I need to be using 2 1/2” fine thread screws when joining 1 1/2” thick stock together. Well, that’s the dilemma right there. No one makes a 2 1/2” fine thread screw (at least that I can find) as I can only find coarse thread screws. Should I just use the biggest fine thread screw I can find which is 1 1/2” and use that setting on the Kreg jig or do you think I could get away with using the 2 1/2” coarse thread screws but applying some wax to the screw first?

Thanks

Scott

-- "Nothing happens until you build it"


7 replies so far

View The Box Whisperer's profile

The Box Whisperer

678 posts in 1530 days


#1 posted 09-24-2014 03:26 PM

could you use the shorter hardwood screws, but from each side? double up because they are smaller? Ive had splitting issues when using the wrong screws with my kreg so I dont go there anymore.

-- "despite you best efforts and your confidence that your smarter and faster than a saw blade at 10k rpm…. your not …." - Charles Neil

View ChrisK's profile

ChrisK

1809 posts in 2541 days


#2 posted 09-24-2014 03:33 PM

i have adjusted my setup to accommodate shorter screws. You should be able to move the pocket so you get enough thread into the piece you are attaching the stringer to. Use screws on both sides of the stringer.

-- Chris K

View pintodeluxe's profile

pintodeluxe

4852 posts in 2273 days


#3 posted 09-24-2014 03:34 PM

Use the correct length screws in the coarse thread. Set the clutch on your drill so as not to strip the screws.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View bigblockyeti's profile

bigblockyeti

3665 posts in 1180 days


#4 posted 09-24-2014 03:36 PM

I too would just use the coarse thread screws and get them tight, but not so tight as to strip out the threads or the head.

View JayT's profile

JayT

4772 posts in 1671 days


#5 posted 09-24-2014 03:43 PM

There are companies out there that make 2-1/2in fine thread pocket screws—my company stocks them from Midwest Fastener. I’m not sure if there is a hardware store near you that uses Midwest for their bolts and screws, but they would be able to order them. Most stores use Hillman as their supplier and they don’t have the correct screw, so it might take some hunting to find a store.

Otherwise, if you are gluing the joint, as well, I would think that TBW’s suggestion of 1-1/2 screws from both sides is as good as any. Use the 3/4 stock setting on the jig so you get as much depth as possible.

-- "Good judgement is the result of experience. A lot of experience is the result of poor judgement."

View timbertailor's profile

timbertailor

1591 posts in 884 days


#6 posted 09-25-2014 03:08 AM

Quote from Kreg’s Site.

“Why is there not a fine-thread screw longer than 1 1/2”?

We do not offer a fine-thread screw longer than 1 1/2” due to the fact that fine-thread screws have a smaller diameter and have the tendency to break off in harder woods. If you are working with hardwoods thicker than 1 1/2”, you can set your jig up for 3/4” and use the 1 1/2” fine-thread screw. This will give you almost 1” into the mating piece, creating a strong joint.”

Glue it and all concerns are resolved.

-- Brad, Texas, https://www.youtube.com/user/tonkatoytruck/feed

View Rick M's profile

Rick M

7905 posts in 1840 days


#7 posted 09-25-2014 06:13 AM

In that situation I use deck screws.

-- http://thewoodknack.blogspot.com/

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com