I have to screw a bolt into a hole in a piece of wood,
but the bolt is too small - it's 9mm in diameter (M10)
while the hole is 10mm in diameter.
What is the best way to make a firm fit?
I thought of plumbers tape.
Is there anything better?

All suggestions gratefully received.

--
Timothy Murphy
e-mail (80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

"Timothy Murphy" wrote in message
...
I have to screw a bolt into a hole in a piece of wood,
but the bolt is too small - it's 9mm in diameter (M10)
while the hole is 10mm in diameter.
What is the best way to make a firm fit?
I thought of plumbers tape.
Is there anything better?

All suggestions gratefully received.

--
Timothy Murphy
e-mail (80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

relocate bolt and drill hole the right size ?

is 1 mm that important ?

PTFE tape would work nicely or electrians insulation tape

Timothy Murphy wrote in message ...
I have to screw a bolt into a hole in a piece of wood,
but the bolt is too small - it's 9mm in diameter (M10)
while the hole is 10mm in diameter.
What is the best way to make a firm fit?
I thought of plumbers tape.
Is there anything better?

All suggestions gratefully received.

--
Timothy Murphy
e-mail (80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

This all sounds a bit strange to me.
An M10 bolt is 10mm overall diameter
Also an M10 bolt is not designed to grip in wood.
'IF' you are fitting an M10 bolt, the correct hole (tapping size) is 8.5mm

Maybe you are talking about a coach screw ( hex or square head but looking
like a woodscrew).

If this fixing is going to bear a load then the only proper way is to use a
new hole of the correct size.

However if the load is light, then cut some slivers of wood with the grain
lengthways and put those in the hole as you fit the screw. Better still glue
a 10mm dowel into the hole and when dry, drill another hole of the correct
diameter.

Hope this helps

Bob

"Timothy Murphy" wrote in message
...
I have to screw a bolt into a hole in a piece of wood,
but the bolt is too small - it's 9mm in diameter (M10)
while the hole is 10mm in diameter.
What is the best way to make a firm fit?
I thought of plumbers tape.
Is there anything better?

All suggestions gratefully received.


fit a screw insert in the hole. these are threaded on the inside and have a
coarse thread on the outside. in the past I have put helicoil inserts into
wood, but only for very light duty applications.

mrcheerful

Timothy Murphy wrote:
I have to screw a bolt into a hole in a piece of wood,
but the bolt is too small - it's 9mm in diameter (M10)
while the hole is 10mm in diameter.
What is the best way to make a firm fit?
I thought of plumbers tape.
Is there anything better?

To make it very, very secure, you could fill the hole with epoxy, or
extramite + sawdust.

On Mon, 27 Dec 2004 22:02:34 +0000, Timothy Murphy wrote:

I have to screw a bolt into a hole in a piece of wood,
but the bolt is too small - it's 9mm in diameter (M10)
while the hole is 10mm in diameter.
What is the best way to make a firm fit?
I thought of plumbers tape.
Is there anything better?

All suggestions gratefully received.
Heatshrink sleeving.