Tolerance spojovacích součástí - Část 3: Kruhové podložky pro šrouby a matice - Výrobní třída A, C a F (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.1.2017
Označení normy: ČSN EN ISO 4759-3
Třídící znak: 021014
Katalogové číslo: 501024
Datum vydání normy: 1.1.2017
Počet stran: 24
Přibližná hmotnost: 72 g (0.16 liber)
Země: Česká technická norma
Kategorie: Technické normy ČSN
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