BS EN ISO 7380-2:2023 PDF

Scope: 1 Scope This document specifies the characteristics of hexagon socket button head screws with collar, with reduced loadability due to head design, in steel, with metric coarse pitch threads M3 to M16, and with product grade A. If in certain cases other specifications are requested, dimensional options can be selected from ISO 888 or ISO 4753. NOTE The reduced loadability (related to the head dimensions in combination with penetration of the hexagon socket specified in this document) implies a limitation of ultimate tensile load shown by a specific marking (property class preceded by a zero). The loadability in the head is assumed to be 80 % of that in the thread for all sizes and all property classes, see Table 4.

BS EN ISO 7380-2:2023 Referenced Document

ISO 10683 Fasteners - Non-electrolytically applied zinc flake coating systems
ISO 1891-4 Fasteners — Vocabulary — Part 4: Control, inspection, delivery, acceptance and quality
ISO 225 Fasteners - Bolts, screws, studs and nuts - Symbols and descriptions of dimensions
ISO 3269 Fasteners — Acceptance inspection
ISO 4042 Threaded components — Electroplated coatings*， 2024-04-21 Update
ISO 4753 Fasteners - Ends of parts with external ISO metric thread
ISO 4759-1 Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B and C
ISO 6157-1 Fasteners surface discontinuities; part 1: bolts, screws and studs for general requirements
ISO 888 Fasteners - Bolts, screws and studs - Nominal lengths and thread lengths
ISO 898-1 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; Technical Corrigendum 1
ISO 8991 Designation system for fasteners
ISO 8992 Fasteners - General requirements for bolts, screws, studs and nuts
ISO 965-1 ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data — Amendment 1

2023 BS EN ISO 7380-2:2023 Fasteners. Button head screws with reduced loadability. Hexagon socket button head screws with collar
2011 BS EN ISO 7380-1:2011 Button head screws. Hexagon socket button head screws
0000 BS EN ISO 7380:2004