Reply by clin

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Posted on Kreg Pocket Screw Length

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991 posts in 1269 days

#1 posted 03-07-2016 05:06 PM

3/4” for 1/2” ply,but baltic birch is really in MM so it s thinner that 1/2”

- daddywoofdawg

I had already noted that earlier in the thread. My material is only 10 to 15 thousandths thinner than a full 1/2”. Which seems a bit odd, as that works out to be 12.3 mm. So I don’t know what it is supposed to be 12 mm or perhaps 12.5 mm. In any case, it is between 0.485” and 0.490”.

As I also mentioned, I did find some Kreg info saying 3/4” screws for screwing 1/2” material to 1/2” material (what I’m doing) and use 1” screws for screwing 1/2” material to 5/8” or thicker.

I made some drawers and used the Kreg Micro jig and followed the instructions. It worked well but you have to make certain not to over drive the screws.

I had much better luck with the micro jig rather than the regular one.

- Redoak49

Since first posting this, I realized I had bought the micro-jig when I bought the K5 and gave it a go with the sample 3/4” screws. Works just fine.

Memory is an odd thing…While I had the dogs out this morning, I checked the rear of a drawer. The screw head is totally visible, i.e. it is not down inside the pocket, and does sit proud of the surface just a smidgen. NOW, I do recall the screw heads being a little proud of surface and having to chisel a small relief area for them.

- hotbyte

Memory, what’s that. I think I used to have one of those too, but now I don’t remember. I’m only in my mid-50’s. Hate to think what I’ll be like 20 years from.

It’s actually good to know that you were getting the same results I got with the 1” screws in 1/2” material. Heads are only just a bit proud. I also thought I might just create clearance in the drawer fronts. But I’ll be going with the 3/4” screws. These are also smaller and I think less likely to split the plywood. Of course I need to watch the torque when driving the screws.

-- Clin

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