on FB it was mentioned that there is a wholesale change on these sizes.... yet I can't find it. ( just got my QB Tsi kit)
Was there a SB on this? Musta missed this.
M3-M4 Rivnut and Bolts
- PhilipRueker
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Re: M3-M4 Rivunt and Bolts
What was meant was that generally speaking M3 rivnuts have been replaced by M4 rivnuts across the build.
Main reason being that M3's often strip the thread and so it's easier to just go up one size to M4.
As far as I know, all newer instructions now will only refer to use M4 rivnuts.
Main reason being that M3's often strip the thread and so it's easier to just go up one size to M4.
As far as I know, all newer instructions now will only refer to use M4 rivnuts.
Re: M3-M4 Rivunt and Bolts
While this is true, some number of the parts will have been punched to the M3 size and you will need to enlarge the holes for M4 rivnuts. They have not yet updated the manual to explain this.
Re: M3-M4 Rivunt and Bolts
Perhaps a dumb question, but why isn't the factory just punching M4 holes there begin with?
Bill Ince
Retired Heavy Equipment Operator
Clearwater, Florida
Retired Heavy Equipment Operator
Clearwater, Florida
- PhilipRueker
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Re: M3-M4 Rivunt and Bolts
I Imagine they may have already made some parts which were still done to the M3 plans and their automatic process won't easily let them remount a part to change the holes after the part is completed, so they let the builders do it (which is easy enough and allows you to make sure you get a perfect fit for the rivnuts).
As permagray said, I'd imagine newly manufactured parts will start coming out with M4 size holes in the future.