BS EN ISO 14581:2023

$102.76

Fasteners. Hexalobular socket countersunk flat head screws (common head style) with reduced loadability

Published By	Publication Date	Number of Pages
BSI	2023	20

Guaranteed Safe Checkout

Categories: 21.060.10 - Bolts, screws, studs, BSI

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

This document specifies the characteristics of hexalobular socket countersunk flat head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to M10, and with product grade A. If in certain cases other specifications are requested, stainless steel grades can be selected from ISO 3506?1, and dimensional options from ISO 888 or ISO 4753. NOTE 1 The reduced loadability (related to the countersunk head dimensions in combination with penetration of the hexalobular 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 3. NOTE 2 Hexalobular socket countersunk head screws (high head), with full loadability are specified in ISO 14582, but these products are not interchangeable, because of different head heights. NOTE 3 Particular attention is needed to ensure alignment of the countersunk head with the bearing surface of the countersink in the assembly.

PDF Catalog

PDF Pages	PDF Title
2	undefined
4	European foreword Endorsement notice
6	Foreword
9	1 Scope 2 Normative references
10	3 Terms and definitions 4 Dimensions and gauging of the head 4.1 Dimensions
15	4.2 Gauging of head 5 Requirements and reference International Standards
16	6 Marking and labelling 6.1 Marking on product 6.2 Labelling on package
17	7 Designation
18	Annex A (informative) Minimum ultimate tensile loads for screws M2 and M2,5 with full loadability
19	Bibliography

Additional information

Status	Definitive
Pages	20
Publication Date	2023-01-25
ISBN	978 0 539 05355 5
Standard Number	BS EN ISO 14581:2023
Title	Fasteners. Hexalobular socket countersunk flat head screws (common head style) with reduced loadability
Identical National Standard Of	EN ISO 14581, ISO 14581
Replaces	BS EN ISO 14581:2013
Descriptors	Dimensions, External-thread fasteners, Diameter, Threaded fasteners, Length, Thread pitch, Dimensional tolerances, Steels, Socket-head fasteners, Screws (bolts), Cheese-head fasteners, Designations, Hexagonal shape, Threads, Fasteners
Publisher	BSI
Committee	FME/9
ICS Codes	21.060.10 - Bolts, screws, studs

Preview PDF


PDF Format	Searchable	Printable	Preview Now

BS EN ISO 14581:2023

PDF Catalog

Related products