lewis.jackson Posted June 21, 2007 Report Share Posted June 21, 2007 I need a size chart for allen bolts cus i need to know what size is what for the bolts in my bike.I know were to get loads cheap and if your help is good ill send you the link. Quote Link to comment Share on other sites More sharing options...
anzo Posted June 21, 2007 Report Share Posted June 21, 2007 (edited) Whats wrong with a ruler? lol, pretty standard sized bolts on trials bikes...What parts are you looking at? Edited June 21, 2007 by anzo Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted June 21, 2007 Report Share Posted June 21, 2007 The analogue way is to use a micrometer to measure the bolts so that you can order the same size.Digitally, you could look up on the internet the part the bolt is for, and then either look at the specs or request them from the manufacturer.What kind of a chart you are envisioning i do not know. Quote Link to comment Share on other sites More sharing options...
Si-man Posted June 21, 2007 Report Share Posted June 21, 2007 Buy em long if you have to and chop them down.Just make sure you grind the end down with a nice shallow chamfer so the thread can catch easier when screwing in. Quote Link to comment Share on other sites More sharing options...
lewis.jackson Posted June 21, 2007 Author Report Share Posted June 21, 2007 The analogue way is to use a micrometer to measure the bolts so that you can order the same size.Digitally, you could look up on the internet the part the bolt is for, and then either look at the specs or request them from the manufacturer.What kind of a chart you are envisioning i do not know.The sort of chart that has a pic with the size under it.My mate had one off the net and i want one cus he lost it. Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted June 21, 2007 Report Share Posted June 21, 2007 The sort of chart that has a pic with the size under it.My mate had one off the net and i want one cus he lost it.So there's a chart in circulation with all the sizes of bolts on. And you have a bolt in your hand. And what you do to find the length is to hold it up to each of the pictures, in turn, until you find one that matches, and then underneath it tells you the size?Like someone's said, use a ruler my friend.This website might help. It did me. Quote Link to comment Share on other sites More sharing options...
lewis.jackson Posted June 21, 2007 Author Report Share Posted June 21, 2007 So there's a chart in circulation with all the sizes of bolts on. And you have a bolt in your hand. And what you do to find the length is to hold it up to each of the pictures, in turn, until you find one that matches, and then underneath it tells you the size?Like someone's said, use a ruler my friend.This website might help. It did me.Yer thats rite and if i use a ruler how do i know if its a m4 or m5 bolt Quote Link to comment Share on other sites More sharing options...
Joe Sheehan! Posted June 21, 2007 Report Share Posted June 21, 2007 Yer thats rite and if i use a ruler how do i know if its a m4 or m5 boltahhh thats not the lengthits how thick the thread isM6 bolt- 5mm allen key but 6mm thread/hole Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted June 21, 2007 Report Share Posted June 21, 2007 ahhh thats not the lengthits how thick the thread isM6 bolt- 5mm allen key but 6mm thread/holeYeah, either use a micrometer or a ruler for that too.I don't see how a chart would be any mor accurate than a ruler? Quote Link to comment Share on other sites More sharing options...
lewis.jackson Posted June 21, 2007 Author Report Share Posted June 21, 2007 ahhh thats not the lengthits how thick the thread isM6 bolt- 5mm allen key but 6mm thread/holeSo if i just add 1mm then id be rite (5mm bolt + 1mm = m6) (6mm bolt + 1mm = m7) Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted June 21, 2007 Report Share Posted June 21, 2007 So if i just add 1mm then id be rite (5mm bolt + 1mm = m6) (6mm bolt + 1mm = m7)I don't know weather that's always the case.The M number is the original width of the shaft into which the thread was cut. So, the diameter of the shaft at its widest (outside the thread) in milimeters is the M number. Quote Link to comment Share on other sites More sharing options...
Joe Sheehan! Posted June 21, 2007 Report Share Posted June 21, 2007 So if i just add 1mm then id be rite (5mm bolt + 1mm = m6)(6mm bolt + 1mm = m7)Ish. You could have a M10 bolt with a 4mm allen key hole, but yeah, its generally the allen key size you use +1. Quote Link to comment Share on other sites More sharing options...
lewis.jackson Posted June 21, 2007 Author Report Share Posted June 21, 2007 THANK YOU SO MUCH TO EVERYONE THAT HELPED Quote Link to comment Share on other sites More sharing options...
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