EN ISO 7094:2000

Plain washers - Extra large series - Product grade C (ISO 7094:2000)

Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.

Flache Scheiben - Extra große Reihe - Produktklasse C (ISO 7094:2000)

Diese Internationale Norm legt Eigenschaften für flache Scheiben, extra große Reihe, Produktklasse C, mit Härteklasse 100 HV und mit Nenngrößen (Gewinde-Nenndurchmesser) von 5 mm bis 36 mm fest. Diese Scheiben werden vorzugsweise bei Holzkonstruktionen verwendet für: - Sechskantschrauben der Produktklasse C mit Festigkeitsklassen <= 6.8; - Sechskantmuttern der Produktklasse C mit Festigkeitsklassen <=6. Werden andere Maße als die in der vorliegenden Norm benötigt, so sollten diese aus ISO 887 entnommen werden.

Rondelles plates - Série très large - Grade C (ISO 7094:2000)

La présente Norme internationale spécifie les caractéristiques des rondelles plates, série très large, de grade C, de classe de dureté 100 HV et de diamètre nominal (diamètre nominal de filetage) de 5 mm à 36 mm inclus.  Ces rondelles conviennent à des  - vis hexagonales de grade Cet de classes de qualité jusqu'à 6.8 inclus;  - écrous hexagonaux de grade C et de classes de qualité jusqu'à 6 inclus;  utilisés dans les structures en bois.  Si des dimensions différentes de celles données dans la présente Norme internationale sont requises, il convient de les choisir parmi celles données dans l'ISO 887.

Okrogle ravne podložke - Izredno velike vrste - Razred izdelave C (ISO 7094:2000)

General Information

• Status: Published
• Publication Date: 31-May-2000
• ICS: 21.060.30 - Washers, locking elements
• Technical Committee: CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
• Drafting Committee: CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 28-Feb-2006
• Completion Date: 28-Feb-2006
• Ref Project: SIST EN ISO 7094:2002 - Plain washers - Extra large series - Product grade C (ISO 7094:2000)

Relations

• Corrected By: EN ISO 7094:2000/AC:2002 - Plain washers - Extra large series - Product grade C (ISO 7094:2000/Cor.1:2000)
• Effective Date: 22-Dec-2008

Overview

EN ISO 7094:2000 - Plain washers - Extra large series - Product grade C (ISO 7094:2000) defines the characteristics of plain (flat) washers in the extra large size range and designates the required quality level as Product grade C. This European adoption (CEN) was also published in Slovenia as SIST EN ISO 7094:2002. The document sits under ICS 21.060.30 (washers, locking elements) and was migrated from a progress sheet; ISO action on withdrawal of ISO 7091 & 7094 was noted in the historical record.

Key topics and technical requirements

While avoiding specific numerical values (see the standard for exact dimensions), EN ISO 7094 typically addresses:

• Scope and definitions for plain (flat) washers in the extra large series.
• Dimensional requirements: nominal external diameters, inside (bore) diameters and thickness classes for the extra large range.
• Tolerances and permissible deviations for form and size to ensure interchangeability.
• Product grade C requirements, indicating the intended manufacturing/quality level and acceptance criteria.
• Marking, identification and packaging expectations to support traceability and correct use.
• Reference to testing or inspection methods applicable to ensure compliance with the standard.

For precise figures, tables and tolerances, consult the official EN ISO 7094:2000 text.

Applications

EN ISO 7094 is relevant wherever larger-diameter plain washers are required to distribute loads, protect surfaces or maintain assembly geometry. Typical applications include:

• Structural and heavy mechanical assemblies where extra-large washers prevent bearing failure.
• Fastening systems in construction, heavy machinery, rail and offshore equipment.
• OEM manufacturing and repair workshops specifying standardized washers for interchangeability.
• Procurement and inventory management when selecting ISO-compliant fastener accessories.

Who uses this standard

• Mechanical and structural engineers specifying fastenings
• Fastener and washer manufacturers producing to international standards
• Quality assurance and inspection personnel verifying compliance
• Procurement officers and technical buyers requiring standardized parts
• Standards bodies and certification organizations referencing washer grades

Related standards

• ISO 7094 (original international publication)
• ISO 7091 (related washer series) - historical note: EN records mention awaiting ISO decision about withdrawal of ISO 7091 & 7094
• National adoptions such as SIST EN ISO 7094:2002 (Slovenia)

For design work, procurement or manufacturing, reference the full EN ISO 7094:2000 document to obtain exact dimensions, tables and acceptance criteria.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Okrogle ravne podložke - Izredno velike vrste -
Razred izdelave C (ISO 7094:2000)Flache Scheiben - Extra große Reihe - Produktklasse C (ISO 7094:2000)Rondelles plates - Série tres large - Grade C (ISO 7094:2000)Plain washers - Extra large series - Product grade C (ISO 7094:2000)21.060.30Podložke, varovalni elementiWashers, locking elementsICS:T
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