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Thread pitch?

Posted: Fri Mar 16, 2012 10:56 pm
by mo haggs
Can anyone tell me the size/pitch of an nc engine bolt?

Re: Thread pitch?

Posted: Fri Mar 16, 2012 11:26 pm
by Le_Blur
The two on the right are M10 x 40mm. The left front is the same but the left rear is M10 x 50mm. I can't remember if they're fine pitch or not.

http://www.cmsnl.com/honda-vfr400r3-199 ... _2800.html

Re: Thread pitch?

Posted: Fri Mar 16, 2012 11:32 pm
by mo haggs
Its the pitch im really after ie. m10 - 1.2 or 1.1 or 1.5ect

Thanx for the reply though

Re: Thread pitch?

Posted: Sat Mar 17, 2012 12:34 am
by Le_Blur
I'll whip one out tomorrow and find out for you. Unless somebody happens to answer before that.

Re: Thread pitch?

Posted: Sat Mar 17, 2012 12:37 am
by mo haggs
Legend

Re: Thread pitch?

Posted: Sat Mar 17, 2012 1:05 am
by twist&go
threads metric common pitch is 1.25

Re: Thread pitch?

Posted: Sat Mar 17, 2012 8:31 am
by thunderace
twist&go wrote:threads metric common pitch is 1.25

But you'll find that the Japs don't think like that. Some bolts may be 1.25mm pitch but others may be 1mm pitch.

Re: Thread pitch?

Posted: Sat Mar 17, 2012 11:00 am
by porndoguk
The engine bolts and subframe bolts are 1.25 pitch fine pitch, m10 normally are 1.5mm corse pitch.

Hope that helps mo.

Rick

Re: Thread pitch?

Posted: Sat Mar 17, 2012 11:17 am
by hunter
The head bolts will be course for ease of fitting,1.5mm.

Re: Thread pitch?

Posted: Sat Mar 17, 2012 12:13 pm
by Neosophist
thunderace wrote:
twist&go wrote:threads metric common pitch is 1.25

But you'll find that the Japs don't think like that. Some bolts may be 1.25mm pitch but others may be 1mm pitch.
The Honda Common service manual is useful it has all of the pitches for different types of bolts they use on bikes.. obviously there are some exceptions and these are docuemented too.

Might not give you the exact answers for everything but worth having if you don't already have