This International Standard specifies the characteristics of normal-series, product-grade-A plain washers in the 200 HV and 300 HV hardness classes and of nominal sizes (nominal thread diameters) ranging from 1,6 mm to 64 mm inclusive. Washers of hardness class 200 HV are suitable for - hexagon bolts and screws of product grades A and B in property classes up to and including 8.8; - hexagon nuts of product grades A and B in property classes up to and including 8; - hexagon bolts, screws and nuts of stainless steel of similar chemical composition; - case-hardened thread rolling screws. Washers of hardness class 300 HV are suitable for - hexagon bolts and screws of product grades A and B in property classes up to and including 10.9; - hexagon nuts of product grades A and B in property classes up to and including 10. If dimensions other than those listed in this International Standard are required, they should be selected from those given in ISO 887. When soft material pieces are clamped, or large clearance holes in the workpiece are used, the user should check the technical suitability of this type of washer.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Dimensions
4 Requirements and International Standards of reference
ISO 10683:2000 Fasteners -- Non-electrolytically applied zinc flake coatings
ISO 3269:2000 Fasteners -- Acceptance inspection
ISO 3506-1:1997 Mechanical properties of corrosion-resistant stainless steel fasteners -- Part 1: Bolts, screws and studs
ISO 10683:2000 Fasteners -- Non-electrolytically applied zinc flake coatings
ISO 3269:2000 Fasteners -- Acceptance inspection
ISO 3506-1:1997 Mechanical properties of corrosion-resistant stainless steel fasteners -- Part 1: Bolts, screws and studs
ISO 4042:1999 Fasteners -- Electroplated coatings
ISO 4759-3:2000 Tolerances for fasteners -- Part 3: Plain washers for bolts, screws and nuts -- Product grades A and C
ISO 6507-1:1997 Metallic materials -- Vickers hardness test -- Part 1: Test method
ISO 887:2000 Plain washers for metric bolts, screws and nuts for general purposes -- General plan