ISO-4759-3 › Tolerances for fasteners - Part 3: Washers for bolts, screws and nuts - Product grades A, C and F
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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.
To find similar documents by classification:
21.060.30 (Washers, locking elements)
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Document Number
ISO 4759-3:2016
Revision Level
4TH EDITION
Status
Current
Publication Date
June 1, 2016
Committee Number
ISO/TC 2