BS EN ISO 4759-3:2016
Tolerances for fasteners Washers for bolts, screws and nuts. Product grades A, C and F
| Standard number: | BS EN ISO 4759-3:2016 |
| Pages: | 20 |
| Released: | 2016-07-31 |
| ISBN: | 978 0 580 82558 3 |
| Status: | Standard |
BS EN ISO 4759-3:2016
This standard BS EN ISO 4759-3:2016 Tolerances for fasteners is classified in these ICS categories:
- 21.060.30 Washers, locking elements
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.
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 .