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Forum topic by Beams37 posted 03-21-2015 10:03 PM 1188 views 0 times favorited 23 replies Add to Favorites Watch
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Beams37

163 posts in 657 days


03-21-2015 10:03 PM

Hey guys,

Last time I posted, I got a ton of information, so I’m giving it another shot.

Today, I bough a Kreg set up. Overall, I am very happy. However, I must have sheared off like 6 screws. For this project, it wasn’t as big of an issue, bc I just cur the board and started over. But, this could be a major issue down the road when I’m working on something nicer.

Any ideas? Am I doing something wrong? Wrong species (Hickory)?

-- FNG ... On a quest for knowledge.


23 replies so far

View ScottKaye's profile

ScottKaye

472 posts in 1420 days


#1 posted 03-21-2015 10:20 PM

Hickory if a very hard wood. Are you using actual Kreg Screws and not imitations? maybe try a quick stroke of the screw down a wax brick

-- "Nothing happens until you build it"

View CharlesA's profile

CharlesA

3025 posts in 1265 days


#2 posted 03-21-2015 10:25 PM

I haven’t had a problem with sheared screws, but when I use pocket holes in plywood or mdf I make sure I have the clutch set on my driver so it doesn’t overtighten. Might try that in hickory.

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View txn's profile

txn

135 posts in 926 days


#3 posted 03-21-2015 10:30 PM

Are you using the fine screws for hardwood? There are fine and coarse kreg screws coarse for softwoods (pine, cedar and poplar etc) and fine for hardwoods.

View Beams37's profile

Beams37

163 posts in 657 days


#4 posted 03-21-2015 11:13 PM

Scott – They are the real deal Kreg screws. Wax isn’t a bad idea at all.

Charles – With the hickory, my highest clutch setting won’t even get close to getting in there.

TX – I am using the fine thread screws.

Maybe it’s just the hardwood … And my drill is lacking clutch settings … And a combination?

-- FNG ... On a quest for knowledge.

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txn

135 posts in 926 days


#5 posted 03-21-2015 11:28 PM

You aren’t by chance hitting a knot are you?

View Beams37's profile

Beams37

163 posts in 657 days


#6 posted 03-21-2015 11:31 PM

Tx – No sir. No knots. It’s gotta just be the hickory … right?

-- FNG ... On a quest for knowledge.

View Troy Cleckler 's profile

Troy Cleckler

384 posts in 838 days


#7 posted 03-21-2015 11:40 PM



Tx – No sir. No knots. It s gotta just be the hickory … right?

- Beams37


I would seem to think its the wood. I’ve not had that issue and I’ve been using the first edition since it came out. I’ve not used hickory but oak plenty of times and the other comments are correct, you need a clutch. Get use to it and you’ll wonder how you got along without it,

-- Troy. - Measure twice, cut once and fill the gaps....

View OSU55's profile

OSU55

1063 posts in 1457 days


#8 posted 03-22-2015 12:03 AM

It’s the hickory. Some of the oak I get can be very hard as well. Try the wax, and turning the screw a couple turns, back it out a turn, few more turns in, back it out a turn or so, etc. I find the self tapping screws go in a lot easier in hard woods this way. And, watch screws near the end grain/end of a board – in hardwood they can split the board w/o predrilling.

View firefighterontheside's profile

firefighterontheside

13522 posts in 1324 days


#9 posted 03-22-2015 12:33 AM

I would add, make sure your pilot hole is going all the way thru and use a shorter screw if you can.

-- Bill M. "People change, walnut doesn't" by Gene.

View distrbd's profile

distrbd

2228 posts in 1914 days


#10 posted 03-22-2015 12:41 AM

I would switch from pocket screw to another form of joinery like dowels.
I have broken a few pocket screws myself when I was using hard maple,after having some success with waxing the screws,pre drilling,I couldn’t spend more time and energy fiddling with the Kreg jig,so I used dowels and got the job done,the piece I was working on looked just as good as if I used pocket screws.

-- Ken from Ontario, Canada

View mramseyISU's profile

mramseyISU

419 posts in 1013 days


#11 posted 03-22-2015 01:57 AM

Maybe switch to the course thread screws. One of them is meant for harder woods and one for soft woods and plywood but I can’t remember which is for which.

-- Trust me I'm an engineer.

View CharlesA's profile

CharlesA

3025 posts in 1265 days


#12 posted 03-22-2015 01:59 AM

coarse thread for soft (and plywood and MDF), fine threads for hardwood. That being said, still worth trying the coarse thread.

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View Redoak49's profile (online now)

Redoak49

1963 posts in 1456 days


#13 posted 03-22-2015 02:51 AM

I think you will need to drill larger pilot hole. You may also encounter cracking..good luck.

View JAAune's profile

JAAune

1646 posts in 1784 days


#14 posted 03-22-2015 03:01 AM

I’ve used pocket holes on hickory before. It works but auger tip screws are a big help and you have to drive the screw in and out in short increments (about a 1/4” in, back an 1/8” and repeat) to do it without splitting. That gives the auger point a chance to drill a pilot hole.

-- See my work at http://remmertstudios.com and http://altaredesign.com

View exelectrician's profile

exelectrician

2327 posts in 1894 days


#15 posted 03-22-2015 05:06 AM

Yeah… I had some of the heads pop off 3 months after the project was finished,,, the Kreg screws are weakly made
.

-- Love thy neighbour as thyself

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