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This document specifies the characteristics of chamfered washers, with counterbore, in alloy steel, cadmium plated, for maximum operating temperature 235 °C.

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This part of ISO 898 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.
Washers that conform to the requirements of this part of ISO 898 are evaluated at an ambient temperature range of 10 °C to 35 °C. These washers are used in applications at low or high temperatures up to a maximum temperature of + 300 °C.
This part of ISO 898 is applicable to the following flat captive and non-captive washers made of carbon steel, alloy steel, spring or alloy spring steel, with thickness from 0,2 mm to 12 mm:
- plain washers (with or without knurls/chamfers);
- square washers;
- square hole washers;
- shaped plates.
It does not specify requirements for such properties as:
- corrosion resistance;
- weldability.

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This part of ISO 4759 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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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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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 document specifies, together with EN 14399-1, hardened and tempered plain washers intended for assembly 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.
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.

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  • Draft
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This document specifies, together with EN 14399-1, hardened and tempered plain washers with chamfer intended for assembly with large series hexagon high-strength structural bolts and nuts with thread sizes from M12 to M36 inclusive.
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.

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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.

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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.

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The European Standard specifies the characteristics of plain steel washers, small, normal and large series, of product grade A with hardness classes 200 HV and 300 HV for metric screw and washer assemblies according to ISO 10644.

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This European Standard specifies the requirements for metric screw and plain washer assemblies with coarse thread M2 to M12 inclusive, flat seating heads, property classes up to and including 10.9 and washer hardness classes 200 HV and 300 HV. The plain washers are captive, i.e. prevented from disassembly and free to rotate.

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  • Technical specification
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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.

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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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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.

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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.

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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.

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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.

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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.

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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.

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Specifies the characteristics of products according to ISO 2340 and ISO 2341; includes nominal sizes from 3 mm up to and including 100 mm as well as specifications with reference to International Standards; gives an example for the designation.

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Specifies the characteristics of products according to ISO 2340 and ISO 2341; includes nominal sizes from 3 mm up to and including 100 mm as well as specifications with reference to International Standards; gives an example for the designation.

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Specifies the characteristics of products according to ISO 2340 and ISO 2341; includes nominal sizes from 3 mm up to and including 100 mm as well as specifications with reference to International Standards; gives an example for the designation.

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