France · AFNOR NF

Z 6 CN 18-09

NF E 29-043

Chemical composition

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Hardness
Threaded bolts, Heat treated, <= 25 mm	≥195	510–710	≥45
Threaded bolts, Heat treated, > 25 mm	≥185	510–710	≥45
Threaded bolts, hot rolled or cold drawn, <= 25 mm	≥195	510–710	≥45
Threaded bolts, hot rolled or cold drawn, > 25 mm	≥185	510–710	≥45
nuts				HV 126–192