Nut Driver conversion M* to X.Xmm

[Ted Maul]

Sounds daft, but some manufacturers quote M3, M4, M5 and some in mm and I can't see a sensible conversion chart?

I'm guessing at
M3 = 5.5mm
M4 = 7mm

Is that right?

[RudolfXC]

Yes, and M2.5 is 5mm.

[Steven Forster]

Sounds daft, but some manufacturers quote M3, M4, M5 and some in mm and I can't see a sensible conversion chart?

I'm guessing at
M3 = 5.5mm
M4 = 7mm

Is that right?


As far as im aware it is........

M3 = 3mm Machine or Metric thread
M4 = 4mm Machine or Metric thread

and so on

[peetbee]

You're all correct!
M3 does = metric 3mm thread, but normally the nut that fits it requires a 5.5mm spanner/driver
and so on...

[Steven Forster]

You're all correct!
M3 does = metric 3mm thread, but normally the nut that fits it requires a 5.5mm spanner/driver
and so on...


lol cheers for that, had me wondering for a minute then :woot:

:thumbsup:

[JCJC]

Found this quickly, http://www.numberfactory.com/nf%20metric%20screws%20and%20bolts.htm

or http://www.engineeringtoolbox.com/metric-bolt-head-wrench-size-d_1458.html

more information than we need :)

[Ted Maul]

Found this quickly, http://www.numberfactory.com/nf%20metric%20screws%20and%20bolts.htm

or http://www.engineeringtoolbox.com/metric-bolt-head-wrench-size-d_1458.html

more information than we need :)

You can never have too much info! Thanks for all the replies, glad I'm not losing it