Standard

BS EN ISO 7380-2:2023

Fasteners. Button head screws with reduced loadability - Hexagon socket button head screws with collar

Current

•

Published:

31 Jan 2023

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.

BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.

Product Details

Descriptors

Raised-head fasteners

Fasteners

Collars (mechanical components)

Screws (bolts)

Threaded fasteners

Socket-head fasteners

Button-head fasteners

Dimensions

Finishes

Hexagonal-head fasteners

Steels

Threads

Tensile strength

Dimensional tolerances

ICS Codes

21.060.10 Bolts, screws, studs

Committee

FME/9

International relationships

Identical to:

ISO 7380-2

ENISO 7380-2

ISBN

978 0 539 05330 2

Publisher

BSI