NFE27-005 is the french norm for naming the quality classes of bolts.
You have Tolerances (N: normal ; T medium; U narrow) classes, but mainly resistance:
14.9 means the steel grade used for the bolt has Rm=1400 MPa and Re=1400 x 0.9=1260 MPa. I thought this naming was replicated or coming from...
Thank you for giving me indication to be understood by german/american engineer when I need to register a new screw as standard part:
example:
CBLX40-M8x1.25-lg60, chamfer point. For french engineer this means standard head cylindrical spheric top large base 6 lobes print size40.
I am asked to...