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Class 5.8 Metric Hex Bolt – ISO 898-1

The metric class 5.8 hex bolt is made from carbon steel and is used in general machinery and support assemblies. ISO 898-1 establishes its mechanical properties; the head marking identifies the specified strength class.

Download the technical data sheet on this page and request information through our quotation form or contact MODEPSA.

  • Fabricacion nacional con control de calidad.
  • Disponible segun medidas y requerimiento del cliente.
  • Aplicaciones industriales, mineria, construccion y metalmecanica.

The metric class 5.8 hex bolt forms removable joints with nuts of a compatible property class. Its six-sided head accepts metric wrenches and sockets for tightening.

Technical features

ISO 898-1 class 5.8 specifies a minimum tensile strength of 520 MPa. The 5.8 designation encodes nominal values and should not be read as a 500 MPa tensile minimum. ISO 4014 and ISO 4017 are dimensional references for partial and full threading. Thread pitch and nut class must match the assembly.

Applications and assembly

Used in general machinery and support assemblies. Tightening torque depends on diameter, finish, lubrication and required preload. Thread length is selected with regard to grip thickness and the location of shear planes.

Download the technical data sheet for further details. Specify dimensions, quantity and your application. Send your inquiry through our quotation form or contact MODEPSA.

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