Shoulder screws ISO 7379 are cost-saving construction elements for a wide variety of different uses.
The maximum tightening torque must not be defined by property class 12.9, it is instead limited by the relatively small bearing points (shoulders) and by the recesses at the transition point from d1 to d2 and d1 to d3.
The ISO standard sheet allows for screws with or without knurled head.
Standard deviation:
no information about the concentricity 2 IT 13 and 2 IT 10
no marking of the property class
the official ISO standard sheet has the following dimensions for d1 - d2: 6,5-M5 / 13-M10 / 25-M20
the dimensions 4-M3 and 5-M4 are not included in the official ISO standard sheet
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RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances).
Customs tariff number
73181568
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