This document specifies the characteristics of hexagon socket countersunk head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to M20, and with product grade A. NOTE 1 Other dimensional options are given in ISO 888, ISO 965-1 and ISO 4753. NOTE 2 The reduced loadability (related to the countersunk head dimensions in combination with penetration of the hexagon socket specified in this document) implies a limitation of ultimate tensile load; see Table 5. NOTE 3 Particular attention is needed to ensure alignment of the countersunk head with the bearing surface of the countersink in the assembly.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Dimensions and gauging of head
4.1 Dimensions
4.2 Gauging of head
5 Requirements and reference International Standards
6 Marking and labelling
6.1 Marking on product
6.2 Labelling on package
7 Designation
Annex A Minimum ultimate tensile loads for bolts and screws with full loadability, coarse pitch threads M2 and M2,5 (informative)
ISO 10683:2018 Fasteners -- Non-electrolytically applied zinc flake coating systems
ISO 1891-4:2018 Fasteners -- Vocabulary -- Part 4: Control, inspection, delivery, acceptance and quality
ISO 3269:2019 Fasteners -- Acceptance inspection
ISO 10683:2018 Fasteners -- Non-electrolytically applied zinc flake coating systems
ISO 1891-4:2018 Fasteners -- Vocabulary -- Part 4: Control, inspection, delivery, acceptance and quality
ISO 3269:2019 Fasteners -- Acceptance inspection
ISO 3506-1:2009 Mechanical properties of corrosion-resistant stainless steel fasteners -- Part 1: Bolts, screws and studs
ISO 4042:2018 Fasteners -- Electroplated coating systems
ISO 4753:2011 Fasteners -- Ends of parts with external ISO metric thread
ISO 4759-1:2000 Tolerances for fasteners -- Part 1: Bolts, screws, studs and nuts -- Product grades A, B and C
ISO 6157-1:1988 Fasteners -- Surface discontinuities -- Part 1: Bolts, screws and studs for general requirements
ISO 6157-3:1988 Fasteners -- Surface discontinuities -- Part 3: Bolts, screws and studs for special requirements
ISO 898-1:2013 Mechanical properties of fasteners made of carbon steel and alloy steel -- Part 1: Bolts, screws and studs with specified property classes -- Coarse thread and fine pitch thread
ISO 8992:2005 Fasteners -- General requirements for bolts, screws, studs and nuts
ISO 965-1:2013 ISO general purpose metric screw threads -- Tolerances -- Part 1: Principles and basic data