21.060.30 - Washers, locking elements
ICS 21.060.30 Details
Washers, locking elements
Unterlegscheiben. Sicherungselemente
Rondelles, éléments de blocage
Podložke, varovalni elementi
General Information
Frequently Asked Questions
ICS 21.060.30 is a classification code in the International Classification for Standards (ICS) system. It covers "Washers, locking elements". The ICS is a hierarchical classification system used to organize international, regional, and national standards, facilitating the search and identification of standards across different fields.
There are 112 standards classified under ICS 21.060.30 (Washers, locking elements). These standards are published by international and regional standardization bodies including ISO, IEC, CEN, CENELEC, and ETSI.
The International Classification for Standards (ICS) is a hierarchical classification system maintained by ISO to organize standards and related documents. It uses a three-level structure with field (2 digits), group (3 digits), and sub-group (2 digits) codes. The ICS helps users find standards by subject area and enables statistical analysis of standards development activities.
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This document specifies grades and mechanical and physical properties of flat washers made of austenitic, ferritic and duplex steel
grades, designed to be used in bolted joints in combination with bolts, screws, studs and nuts with a specified property class in
accordance with ISO 3506-1 and ISO 3506-2. These types of washers may also be used with other fasteners such as screws forming
their own mating thread This part of ISO 3506 is applicable to the following flat captive and non captive washers made of corrosion resistant stainless steel: - plain washers (with or without knurls, ribs or chamfers); - square washers; - square hole washers; -
shaped plateS
- Standard22 pagesEnglish languagee-Library read for1 day
This document specifies grades and mechanical and physical properties of flat washers made of austenitic, ferritic and duplex steel
grades, designed to be used in bolted joints in combination with bolts, screws, studs and nuts with a specified property class in
accordance with ISO 3506-1 and ISO 3506-2. These types of washers may also be used with other fasteners such as screws forming
their own mating thread This part of ISO 3506 is applicable to the following flat captive and non captive washers made of corrosion resistant stainless steel: - plain washers (with or without knurls, ribs or chamfers); - square washers; - square hole washers; -
shaped plateS
- Standard22 pagesEnglish languagee-Library read for1 day
This document specifies the mechanical and physical properties of flat washers made of corrosion resistant austenitic, ferritic and duplex stainless steels, designed to be used in bolted joints in combination with bolts, screws, studs and nuts with specified grades and property classes in accordance with ISO 3506-1 and ISO 3506-2. These types of washers are also used with other stainless steel fasteners such as screws forming their own mating thread (see e.g. ISO 3506-4). ISO 3506-6 provides general rules and additional technical information on suitable stainless steels and their properties (detailed properties of stainless steel grades, corrosion behaviour with regards to pitting, crevice and intergranular corrosion, magnetic properties, etc.) WARNING - Washers conforming to the requirements of this document are tested at the ambient temperature range of 10 °C to 35 °C and are used in applications ranging from –20 °C to +150 °C. However, these washers are also used outside this range down to –196 °C and up to +300 °C for specific applications. It is possible that they do not retain the specified mechanical and physical properties at lower and/or elevated temperatures. Therefore, it is the responsibility of the user to determine the appropriate choices based on the service environment conditions of the assembly (see also Clauses 6 and 7). This document applies to the following flat non-captive and captive washers with thickness 0,2 mm to 6 mm (see 5.1): - plain washers and flat washers (with or without knurls, ribs or chamfers), - square washers, - square hole washers, - shaped plates. The term “washer” is used in the following for all types of washers and plates within the scope of this document. This document does not specify requirements for functional properties such as weldability.
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SCOPE
1.1 This specification covers the chemical, mechanical, and dimensional requirements for hardened steel Backup and Reaction washers for use with fasteners having nominal diameters of 1/2 in. through 3 in. and M14 through M80. These washers are intended for general-purpose mechanical and structural use with bolts, nuts, studs, DTIs, and other internally and externally threaded fasteners. These washers are suitable for use with fasteners covered in Specifications A354, A193/A193M, A194/A194M, A320/A320M, F959/F959M, A449, A563, A563M, and F3125.
1.2 The washers are designated by style denoting the shape, by type denoting the material, and by inch or metric dimensions.
1.2.1 The styles of washers covered are:
1.2.1.1 Reaction—Circular washers with a knurled surface on one side and a contoured outside diameter designed to couple with the installation tool.
1.2.1.2 Backup—Circular washers having a knurled surface on both sides.
1.2.2 The types of washers covered are:
1.2.2.1 Type 1—Medium Carbon or Medium Carbon Alloy Steel.
1.2.2.2 Type 3—Weathering steel. This specification provides for furnishing Type 3 to chemical composition or a Corrosion Index (CRI) of 6 or higher, at the supplier’s option.
1.3 The values stated in either inch-pound units for inch fasteners and SI units for metric fasteners and are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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ABSTRACT
This specification covers round and miscellaneous shape steel plain (flat) washers furnished in an unhardened condition. The washers are intended for general use bolt, nut, and stud applications to provide increased bearing surface, spacing, and to prevent galling. The washers shall be punched from hot-rolled, hot-rolled and pickled, or cold-rolled steel; or shall be machined from bar stock or tubing; or shall be forged. The washers shall also be tumbled, vibrated, or otherwise processed to minimize burrs. These washers may be zinc-coated, hot-dip-coated, cadmium-plated, or zinc-plated by using hot dipping, mechanical deposition, and electroplating processes. Chemical analysis may be conducted in order to determine the composition of washers and a hardness test may also be performed.
SCOPE
1.1 This specification covers round and miscellaneous shape steel plain (flat) washers furnished in an unhardened condition.
1.2 These washers are intended for general use bolt, nut, and stud applications to provide increased bearing surface, spacing, and to prevent galling.
1.3 Unless otherwise specified, washers are furnished with dimensions conforming to B18.21.1, Type A, Table 11.
1.4 Hardened washers for use with heat-treated structural bolts are covered by Specifications F436/F436M.
1.5 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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- Technical specification4 pagesEnglish languagesale 15% off
This document specifies the characteristics of chamfered washers, with counterbore, in alloy steel, cadmium plated, for maximum operating temperature 235 °C.
- Standard7 pagesEnglish languagee-Library read for1 day
This document specifies mechanical and physical properties of flat washers, designed to be used in bolted joints in combination with bolts, screws, studs and nuts with a specified property class in accordance with ISO 898‑1 and ISO 898‑2.
NOTE 1 These types of washers can also be used with other fasteners such as screws forming their own mating thread.
Washers that conform to the requirements of this document are evaluated at an ambient temperature range of 10 °C to 35 °C. They might not retain the specified mechanical and physical properties at elevated temperatures and/or lower temperatures.
NOTE 2 Washers conforming to the requirements of this document are used in applications ranging from −50 °C to +150 °C. Users are advised to consult an experienced fastener expert for temperatures outside this range and up to a maximum temperature of +300 °C when determining appropriate choices, or for critical applications.
This document is applicable to the following flat captive and non-captive washers made of carbon steel or alloy steel, with thickness from 0,2 mm to 12 mm:
— plain washers (with or without knurls, ribs or chamfers);
— square washers;
— square hole washers;
— shaped plates.
It does not specify requirements for the following properties:
— corrosion resistance;
— weldability.
- Standard25 pagesEnglish languagee-Library read for1 day
This document specifies mechanical and physical properties of flat washers, designed to be used in bolted joints in combination with bolts, screws, studs and nuts with a specified property class in accordance with ISO 898‑1 and ISO 898‑2. NOTE 1 These types of washers can also be used with other fasteners such as screws forming their own mating thread. Washers that conform to the requirements of this document are evaluated at an ambient temperature range of 10 °C to 35 °C. They might not retain the specified mechanical and physical properties at elevated temperatures and/or lower temperatures. NOTE 2 Washers conforming to the requirements of this document are used in applications ranging from −50 °C to +150 °C. Users are advised to consult an experienced fastener expert for temperatures outside this range and up to a maximum temperature of +300 °C when determining appropriate choices, or for critical applications. This document is applicable to the following flat captive and non-captive washers made of carbon steel or alloy steel, with thickness from 0,2 mm to 12 mm: - plain washers (with or without knurls, ribs or chamfers); - square washers; - square hole washers; - shaped plates. It does not specify requirements for the following properties: - corrosion resistance; - weldability.
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ISO 4759-3:2016 specifies tolerances for flat washers of product grades A, C and F with nominal diameters of 1 mm to 150 mm inclusive, designed to be used in bolted joints in combination with bolts, screws, studs and nuts.
This part of ISO 4759 may be applied to non-flat washers however it does not include all the tolerances related to these washers.
It applies to non-captive and captive washers, and to standard and non-standard washers.
It does not apply to dynamic disc springs.
Washers of product grades F and A are intended to be used with bolts, screws, studs and nuts of product grades A and B; washers of product grade C are intended to be used with bolts, screws, studs and nuts of product grade C.
NOTE The product grade refers to a specific tolerance range related to dimensional and geometrical characteristics (product grade F for fine tolerances, product grade A for precise tolerances, product grade C for large tolerances).
Annex A presents tolerances taken from ISO 286‑1 and ISO 286‑2.
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This European Standard specifies, together with EN 14399 1 and EN 14399 2, hardened and tempered chamfered plain washers with chamfer intended for bolting assemblies with large series hexagon high-strength structural bolts and nuts with thread sizes from M12 to M36 inclusive.
Washers according to this standard are not intended to be used in direct contact with oversized or slotted holes.
NOTE Attention is drawn to the importance of ensuring that the washers are correctly used if satisfactory results are to be obtained. For recommendations concerning proper application, reference to EN 1090–2 is made.
- Standard9 pagesEnglish languagee-Library read for1 day
This European Standard specifies, together with EN 14399 1 and EN 14399 2, hardened and tempered plain washers intended for bolting assemblies with large series hexagon high-strength structural bolts and nuts with threads from M12 to M36 inclusive. Washers according to this standard can be applied under the nut only.
Washers according to this standard are not intended to be used in direct contact with oversized or slotted holes.
NOTE Attention is drawn to the importance of ensuring that the washers are correctly used if satisfactory results are to be obtained. For recommendations concerning proper application, reference to EN 1090-2 is made.
- Standard9 pagesEnglish languagee-Library read for1 day
ISO 4759-3:2016 specifies tolerances for flat washers of product grades A, C and F with nominal diameters of 1 mm to 150 mm inclusive, designed to be used in bolted joints in combination with bolts, screws, studs and nuts.
This part of ISO 4759 may be applied to non-flat washers however it does not include all the tolerances related to these washers.
It applies to non-captive and captive washers, and to standard and non-standard washers.
It does not apply to dynamic disc springs.
Washers of product grades F and A are intended to be used with bolts, screws, studs and nuts of product grades A and B; washers of product grade C are intended to be used with bolts, screws, studs and nuts of product grade C.
NOTE The product grade refers to a specific tolerance range related to dimensional and geometrical characteristics (product grade F for fine tolerances, product grade A for precise tolerances, product grade C for large tolerances).
Annex A presents tolerances taken from ISO 286‑1 and ISO 286‑2.
- Standard18 pagesEnglish languagee-Library read for1 day
ISO 4759-3:2016 specifies tolerances for flat washers of product grades A, C and F with nominal diameters of 1 mm to 150 mm inclusive, designed to be used in bolted joints in combination with bolts, screws, studs and nuts. This part of ISO 4759 may be applied to non-flat washers however it does not include all the tolerances related to these washers. It applies to non-captive and captive washers, and to standard and non-standard washers. It does not apply to dynamic disc springs. Washers of product grades F and A are intended to be used with bolts, screws, studs and nuts of product grades A and B; washers of product grade C are intended to be used with bolts, screws, studs and nuts of product grade C. NOTE The product grade refers to a specific tolerance range related to dimensional and geometrical characteristics (product grade F for fine tolerances, product grade A for precise tolerances, product grade C for large tolerances). Annex A presents tolerances taken from ISO 286‑1 and ISO 286‑2.
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This European Standard specifies, together with EN 14399 1 and EN 14399 2, hardened and tempered plain washers intended for bolting assemblies with large series hexagon high-strength structural bolts and nuts with threads from M12 to M36 inclusive. Washers according to this standard can be applied under the nut only.
Washers according to this standard are not intended to be used in direct contact with oversized or slotted holes.
NOTE Attention is drawn to the importance of ensuring that the washers are correctly used if satisfactory results are to be obtained. For recommendations concerning proper application, reference to EN 1090-2 is made.
- Standard9 pagesEnglish languagee-Library read for1 day
This European Standard specifies, together with EN 14399 1 and EN 14399 2, hardened and tempered chamfered plain washers with chamfer intended for bolting assemblies with large series hexagon high-strength structural bolts and nuts with thread sizes from M12 to M36 inclusive.
Washers according to this standard are not intended to be used in direct contact with oversized or slotted holes.
NOTE Attention is drawn to the importance of ensuring that the washers are correctly used if satisfactory results are to be obtained. For recommendations concerning proper application, reference to EN 1090–2 is made.
- Standard9 pagesEnglish languagee-Library read for1 day
ISO 10673:2009 specifies the characteristics of plain steel washers, small, normal and large series, of product grade A for metric screw and washer assemblies in accordance with ISO 10644.
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ISO 10644:2009 specifies the requirements for metric screw and plain washer assemblies made of steel with coarse thread M2 to M12 inclusive, flat seating heads, property classes up to and including 10.9 and washer hardness classes 200 HV or 300 HV. The plain washers are captive, i.e. prevented from disassembly and free to rotate.
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- Technical specification12 pagesSlovenian languagee-Library read for1 day
ISO 10644:2009 specifies the requirements for metric screw and plain washer assemblies made of steel with coarse thread M2 to M12 inclusive, flat seating heads, property classes up to and including 10.9 and washer hardness classes 200 HV or 300 HV. The plain washers are captive, i.e. prevented from disassembly and free to rotate.
- Standard13 pagesEnglish languagee-Library read for1 day
ISO 10673:2009 specifies the characteristics of plain steel washers, small, normal and large series, of product grade A for metric screw and washer assemblies in accordance with ISO 10644.
- Standard13 pagesEnglish languagee-Library read for1 day
ISO 10644:2009 specifies the requirements for metric screw and plain washer assemblies made of steel with coarse thread M2 to M12 inclusive, flat seating heads, property classes up to and including 10.9 and washer hardness classes 200 HV or 300 HV. The plain washers are captive, i.e. prevented from disassembly and free to rotate.
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ISO 10673:2009 specifies the characteristics of plain steel washers, small, normal and large series, of product grade A for metric screw and washer assemblies in accordance with ISO 10644.
- Standard7 pagesEnglish languagesale 15% off
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ISO - Taking over of an ISO Technical Corrigendum
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ISO - Taking over of an ISO Technical Corrigendum
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ISO - Taking over of an ISO Technical Corrigendum
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ISO - Taking over of an ISO Technical Corrigendum
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Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.
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Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.
- Standard8 pagesEnglish languagee-Library read for1 day
Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.
- Standard8 pagesEnglish languagee-Library read for1 day
Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.
- Standard10 pagesEnglish languagee-Library read for1 day
Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.
- Standard10 pagesEnglish languagee-Library read for1 day
- Standard10 pagesEnglish languagee-Library read for1 day
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- Standard10 pagesEnglish languagee-Library read for1 day
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Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.
- Standard10 pagesEnglish languagee-Library read for1 day
- Standard7 pagesEnglish languagee-Library read for1 day
- Standard5 pagesEnglish languagesale 15% off
- Standard5 pagesFrench languagesale 15% off
- Standard5 pagesEnglish languagesale 15% off
- Standard5 pagesFrench languagesale 15% off
Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.
- Standard10 pagesEnglish languagee-Library read for1 day
Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.
- Standard8 pagesEnglish languagee-Library read for1 day
- Standard5 pagesEnglish languagesale 15% off
- Standard5 pagesFrench languagesale 15% off
Migrated from Progress Sheet (TC Comment) (2000-07-10): Crash 1996: Await ISO decision as to the withdrawal of ISO 7091 & 7094.
- Standard8 pagesEnglish languagee-Library read for1 day