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How to install countersunk screws w/ plugs

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Forum topic by Andrew posted 510 days ago 1708 views 0 times favorited 10 replies Add to Favorites Watch
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Andrew

233 posts in 538 days


510 days ago

I am working on the “i can do it” step stool – it’s all done aside from finishing and plugging thee screw holes. It’s my first time trying to countersink screws. I think, for starters, I didn’t drill the pilot hole deep enough for the screw shaft, and 2 of my screws broke as I was screwing them in (with a hand screwdriver). These are #8 1-1/4” screws.

Once I drilled a bit deeper, I put the plugs in, but they did not appear to go in deep enough to hold tightly. I ended up sanding off a bit of the bottom part of each plug on a drum sander so the “thinnest” part of the taper was no longer in existence. I filled each hole with glue and tapped the plugs in with a hammer. Now they are dying and in there fairly tightly.

I am concerned I didn’t; do it correctly. It’s a tiny stool for a 2-yr-old so I am not overly concerned about the two missing screws, but I am concerned that the plugs may come out.

Anyone care to give a quick how-to? Thanks!

-Andrew

-- Andrew - Albany. NY




10 replies so far

View ajosephg's profile

ajosephg

1723 posts in 1732 days


#1 posted 510 days ago

I’d say if the plugs are at least 3/16 thick and since they are glued in, they are there forever.

If you’re still nervous the only alternative is to drill them out, remove the screws and drill the counter sink deeper.

-- Joe

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Andrew

233 posts in 538 days


#2 posted 510 days ago

If they’re in there forever, I’m happy. What’s the best way to remove the little nub sticking out on top? Sander? Chisel? Utility knife?

How long should I wait before doing that? 16 hours suffice?

-- Andrew - Albany. NY

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ajosephg

1723 posts in 1732 days


#3 posted 510 days ago

I’d use a sander, and wait at least 24 hours so the moisture dissipates. If you sand it flush while it has a high moisture content, when it finally dries out, it may not be level with the surrounding surface.

-- Joe

View ShaneA's profile

ShaneA

3970 posts in 770 days


#4 posted 510 days ago

16hrs will be long enough. Flush cut saw, chisel, sander will get you there. Good luck

View Sawdust4Blood's profile

Sawdust4Blood

321 posts in 1193 days


#5 posted 510 days ago

I’d agree that if there is at least 3/16 glued in, they’re there forever. I cut mine close to the surface with a small dozuki saw then clean up the rest with a block plane. Sander works too but it just takes longer and I’m not the king of patience.

-- Greg, Severn MD

View Sawkerf's profile

Sawkerf

1776 posts in 1240 days


#6 posted 510 days ago

If you have a drill press, you can buy plug cutters in various sizes to make your own plugs from scrap pieces of whatever wood you’re using. If you don’t have a drill press, try using pieces of dowel of the right diameter or premade plugs. The premade plugs are usually sold in packages wherever you find dowels.

I go for at least 1/8” of countersink, run in my screw, squirt in a blob of glue, and tap in a plug leaving it a bit proud. When the glue dries, sand it flush and you’re good to go.

-- Adversity doesn't build character...................it reveals it.

View klw's profile

klw

9 posts in 532 days


#7 posted 510 days ago

If the plugs are very tall, and you try to sand them off, you may end up with an uneven surface. Trim them as close as you can before sanding.

Sharp chisel, razor knife, “really fine” tooth saw, etc. Patience will be your friend here. Sand using a block of wood to maintain a flat surface.

View Greg The Cajun Box Sculptor's profile

Greg The Cajun Box Sculptor

3779 posts in 1480 days


#8 posted 510 days ago

I use a tapered plug cutter that works great. Drill the plug hole with a brad point bit and follow with a pilot hole. The tapered plugs fit snug and precise. I always use a sharp chisel to trim flush.

-- Every step of any project should be considered your masterpiece if you want the finished product to reflect the quality of your work. http://www.FineArtBoxes.com

View Andrew's profile

Andrew

233 posts in 538 days


#9 posted 510 days ago

Thanks guys. I’ll go buy one of those flush-cut saws, then follow it up with sandpaper on a block. I’ll post pics when I’m done.

-- Andrew - Albany. NY

View renners's profile (online now)

renners

1894 posts in 1140 days


#10 posted 509 days ago

Put a thin piece of card against the plug, then use a hacksaw blade on top of the card to prevent saw marks, plug will finish slightly proud, then just a quick sand down.

-- Do or do not, there is no try

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