BS 4190:2014 ISO metric black hexagon bolts, screws and nuts. Specification

BS 4190:2014

ISO metric black hexagon bolts, screws and nuts. Specification

Status : Confirmed, Current   Published : October 2014



What is this standard about?

This British Standard deals with sizes and tolerances for a specific range of hexagonal bolts, screws and nuts.

Who is this standard for?

  • Manufacturers and suppliers of black hexagon bolts, screws and nuts
  • Users of black hexagon bolts, screws and nuts

Why should you use this standard? 

It gives the general dimensions and tolerances of black hexagon bolts, screws and nuts with ISO metric threads in diameters from 5 mm to 68 mm inclusive. Basic dimensions for sizes greater than M68 are also included. 

It also specifies and addresses mechanical properties of carbon or alloy steel bolts, screws and nuts, which are to be used for special applications. Dimensional requirements are included for bolts, screws and nuts finished black all over and for those which have partially machined finishes.

This standard gives clear guidelines which will help those making, selling and using black hexagon bolts, screws and nuts to achieve greater business efficiency and product interoperability.

NOTE: This standard should be read in conjunction with BS EN ISO 898-1 as it contains up to date best practice for mechanical properties of bolts.

What’s changed since the last update?

This third edition is a technical update that replaces the 2001 version of this standard.  

Standard NumberBS 4190:2014
TitleISO metric black hexagon bolts, screws and nuts. Specification
StatusConfirmed, Current
Publication Date31 October 2014
Confirm Date07 August 2020
Normative References(Required to achieve compliance to this standard)BS EN ISO 6508-3, BS EN ISO 1234, BS EN ISO 10684, BS EN ISO 6506-3, BS 3643-1, BS EN ISO 6506-2, BS EN ISO 6508-1, BS ISO 965-5, BS 7371-6, BS EN ISO 6506-4, BS EN ISO 4042, BS EN ISO 6506-1, BS 3643-2, BS 1916-1, BS EN ISO 6508-2, BS EN ISO 898-1:2013
Informative References(Provided for Information)BS EN ISO 4032, BS EN ISO 286-2, BS EN ISO 286-1, BS EN ISO 898-2
ReplacesBS 4190:2001
Draft Superseded By14/30283394 DC
DescriptorsMarking, Diameter, Dimensions, Dimensional tolerances, ISO metric threads, Mechanical testing, Hexagonal-head fasteners, Mechanical properties of materials, Nuts, Screws (bolts), Designations, Steels, Bolts
ISBN978 0 580 83040 2
File Size1.083 MB

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