ISO 3506-4:2009
Mechanical properties of corrosion-resistant stainless steel fasteners — Part 4: Tapping screws
ISO 3506-4:2009 specifies the mechanical properties of tapping screws made of austenitic, martensitic and ferritic steel grades of corrosion-resistant stainless steels, when tested over an ambient temperature range of 10 °C to 35 °C. Properties vary at higher or lower temperatures.
It applies to tapping screws with threads from ST2,2 up to and including ST8, in accordance with ISO 1478.
It does not apply to screws with special properties such as weldability.
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Scope
Normative references
Designation, marking and finish
Designation
Marking
General
Manufacturer's identification mark
Tapping screws
Packages
Finish
Chemical composition
Mechanical properties
General
Surface hardness
Core hardness
Torsional strength
Thread forming capability
Test methods
Surface hardness test
Core hardness test
Torsional strength test
Drive test
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Scope
Normative references
Designation, marking and finish
Designation
Marking
General
Manufacturer's identification mark
Tapping screws
Packages
Finish
Chemical composition
Mechanical properties
General
Surface hardness
Core hardness
Torsional strength
Thread forming capability
Test methods
Surface hardness test
Core hardness test
Torsional strength test
Drive test