BRITISH STANDARD BS EN ISO Incorporating Corrigendum No. 1 Fasteners — Quality assurance system The European. Find the most up-to-date version of ISO at Engineering We are looking ISO , it was referenced in a document. The statement that can be found on it is: ISO specifies requirements for a fastener q.
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So for these fasteners, on average, can be expected. Standards Subsctiption may be the perfect solution. Proceed to Checkout Continue Shopping. Date Comments Corrigendum No. If a characteristic is specified and is considered critical with respect to its intended use, all concerned parties are expected to take prudent measures to approach zero defects. In the production of threaded fasteners, there are differences in the screw threads based on the method in which the threads are formed which affect geometry, tolerances, roughness, thread laps, etc.
Experience has shown that for isso single specified characteristic, after automatic inspection there is still an average remaining level of non-conformities of about. Information regarding online access to British Standards via British Standards Online can be found at http: This is schematically illustrated in Figure A.
This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by Mayand conflicting national standards shall be withdrawn at the latest by May Io standard is also available to be included in Standards Subscriptions.
To achieve this aim, intermediate objectives are set by specifying criteria for evaluating the delivered quality of fasteners. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would 164266 the Secretary of the technical committee responsible, the identity 164426 which can be found on the inside front cover. This International Standard specifies requirements which shall be met by the mechanical fastener manufacturers and distributors.
For dated references, subsequent amendments to, or revisions of, any 164226 these publications do not apply. The corresponding tolerances are specified considering the individual part and production method. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. As the voice of the U. Isso same applies for the application of lubricants on fasteners to meet specified limits of coefficients of friction. The number of parts produced by a manufacturer can amount to up to several is per day, which requires special measures for maintaining the process capability.
The adherence to the tolerances depends not only on the material used but also on a number of other influencing factors; e. If, for instance, a value of 1,33 for a single characteristic is assumed, this means that of the fasteners are within the specification for this particular characteristic.
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Special measures are taken to prevent mechanical damage especially at points of impact and to avoid contamination. Please first verify your email before subscribing to alerts. For all other characteristics, the manufacturer may use the quality plan of his choice and the customer shall rely on ISO to evaluate the level of conformance of the purchased fasteners. Contact the Information Centre. Users of British Standards should make sure that they iiso the latest amendments or editions.
ISO – Fasteners — Quality assurance system
When coating the parts for corrosion protection, differences in the local thickness of the coating cannot be avoided and will vary depending on the part size and the coating method, and may 16246 differences in the local salt spray corrosion resistance.
The documentation for traceability shall be preserved by the manufacturer for at least ten years from the date of sale to the customer.
It is common practice to include only fasteners with non-conforming characteristics and dissimilar fasteners isi the establishment of ppm values unless otherwise agreed. These requirements, which constitute a quality assurance system, are intended to reduce or prevent the production of nonconforming fasteners with the objective of approaching zero defects for the charac-teristics.
BS EN ISO 16426:2002
Additionally, the user shall take all prudent measures to assure the integrity of the fasteners purchased in accordance with this International Standard. Need more than one copy?
The BSI copyright date displayed in this document indicates when the document was last issued. The shipping document shall include at least the designation of the fasteners and the manufacturing lot number or trace number. The distributor shall be able to provide full manufacturing lot documentation for a ten year period from the date of the sale to the customer, provided the customer gives the manufacturing lot number or the trace number to the distributor.
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This publication does not purport to include all the necessary provisions of a contract. The application of SPC cannot guarantee the delivery of fasteners with non-conformities, on a statistical basis.