If I use an M5 heli coil kit to fit a rail to my bobcat, will an M5 bolt fit the thread? I'm a complete novice at this kind of thing and want to get it right first time.
This might be a stupid question but.......
- Thread starter Micbro
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The threads also have to match, not just the size of bolt.
There are different types of thread "distances"(not sure what it's called in English).
P.S "The wise man doesn't give the right answers, he poses the right questions." -Claude Levi Strauss
There are different types of thread "distances"(not sure what it's called in English).
P.S "The wise man doesn't give the right answers, he poses the right questions." -Claude Levi Strauss
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i don't think M5 has different thread pitches like some of the other mostly smaller metric sizes
if you get helicoils for an M5 then M5 is what fits
it will require a larger tap to install the helicoil
if you get helicoils for an M5 then M5 is what fits
it will require a larger tap to install the helicoil
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M5 is available in both coarse, .8mm and fine .5mm thread pitch. You might want to verify what you have and need. The old measure twice, cut once kind of thing. M5x.8 is more common but I've been screwed by hard to find fine pitch many times. (Pun intended)
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T-nuts are stronger for soft material like plastic and wood: http://www.amazon.com/Hillman-Group-180297-Pronged-100-Pack/dp/B000H61YF2/ref=sr_1_8?s=industrial&ie=UTF8&qid=1454256329&sr=1-8 Helicoils are for repairing threads in metal.
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how come the charts only show the M5 with a .8mm pitch NOT a .5mm pitch ?
does that mean they don't make the fine pitch for purchase ?
https://www.boltdepot.com/fastener-information/measuring/metric-thread-pitch.aspx
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Yes.
You will need to predrill & tap using the supplied M6 tap from the helicoil kit before inserting the M5 helicoil.
Into Aluminium (which I assume the Bbobcat is) predrill 5.2mm diameter x 12.3mm deep inorder to achieve 1d thread depth ie 5mm deep thread.
Then use the M6 supplied tap.
The thread pitch of the helicoil will be M5 x 0.8. You will not get an M5 x 0.5 pitch helicoil. Typically only start at M8 and above.
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Thanks for the info, I'm still waiting for my atlas rail to arrive. Can't wait to get it mounted.
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"A wise man doesn't know all the answers, a wise man knows where to find the answers" - Mr. Gadgets
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