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Basic information about the mechanical properties of nuts according to standard ISO 898-2

ThreadsStrength class
0405456
Try
tensile
Sp
Hardness
by Vickerse
(HV)
Try
tensile
Sp
Hardness
by Vickerse
(HV)
Try
tensile
Sp
Hardness
by Vickerse
(HV)
Try
tensile
Sp
Hardness by
Vickerse
(HV)
Try
tensile
Sp
Hardness
by Vickerse
(HV)
přesdoN/mm2min.max.N/mm2min.max.N/mm2min.max.N/mm2min.max.N/mm2min.max.
-M4380188302500272353---520130302600150302
M4M7580670
M7M10590680
M10M16610700
M16M39510117302630146720170
M39M100----128-142

 

ThreadsStrength class
0405456
Try
tensile
Sp
Hardness by
Vickerse 
(HV)
Try
tensile
Sp
Hardness by
Vickerse 
(HV)
Try
tensile
Sp
Hardness by
Vickerse 
(HV)
Try
tensile
Sp
Hardness by
Vickerse 
(HV)
Try
tensile
Sp
Hardness by
Vickerse 
(HV)
přesdoN/mm2min.max.N/mm2min.max.N/mm2min.max.N/mm2min.max.N/mm2min.max.
-M4800180302900170302104027235311402951)3531)11502722)3532)
M4M7855200915188104011401150
M7M10870940104011401160
M10M16880950105011701190
M16M399202333539201060---1200-
M39M100-207---------
  1. Nut type 1 (ISO 4032)
  2. Nut type 2 (ISO 4033)

Minimum hardness is mandatory only for nuts which can not be tested for tensile and processedmaterials. For all other nuts minimum hardness are not binding and are valid only as a guideline.. M5 hexagonal nuts should be marked with a strength classdesignation of origin, if it is technically possible. The designation ispermitted only on the contact surface and the key areas for use is permitted only to indicate depth.

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