Holes drilling table for NASM4?
Holes drilling table for NASM4?
(OP)
Hi to everybody!
I'm looking for a holes drilling table regarding the installation of the NASM4 bolts.
My question is: Is there any table or standards that shows the hole dimension values for the NASM4 bolts installation? or Where I can find it?
I also checked the fabbrication standard NASM4 but i don't find anythings.
Regard dz78
I'm looking for a holes drilling table regarding the installation of the NASM4 bolts.
My question is: Is there any table or standards that shows the hole dimension values for the NASM4 bolts installation? or Where I can find it?
I also checked the fabbrication standard NASM4 but i don't find anythings.
Regard dz78





RE: Holes drilling table for NASM4?
These are not close-tolerance bolts. You decide the hole diameters yourself based on manufacturing tolerances, wether you have a floating nutplate etc.
As an example, one aircraft manufacturer uses 7.09-7.39 for -4 bolt holes attaching to a floating nutplate.
RE: Holes drilling table for NASM4?
Look closely at the NASM3--20 spec... just above the title block there is a thin block, RH side sez "part numbers remain AN3--40".
NAS618 is a universal standard for fastener dia and hole dia Class
Regards, Wil Taylor