Standard

BS EN 4128:2026

Aerospace series. Bolt, normal hexagonal head, coarse tolerance shank, short thread, in heat resisting nickel base alloy, aluminium IVD coated. Classification: 1 250 MPa (at ambient temperature)/425 °C

Current

•

Published:

28 Feb 2026

1 Scope

This document specifies the characteristics of bolts, normal hexagonal head, coarse tolerance shank, short thread, in heat resisting nickel base alloy, aluminium IVD coated.

Classification: 1 250 MPa1/425 °C2.

Product Details

Descriptors

Metal coatings

Heat-resistant materials

Surface treatment

Hexagonal-head fasteners

Aluminium

Nickel alloys

Marking

Fasteners

Threads

Mass

Bolts

Threaded fasteners

Aircraft components

Dimensions

Designations

External-thread fasteners

ICS Codes

49.030.20 Bolts, screws, studs

Committee

ACE/12

International relationships

Identical to:

EN 4128

ISBN

978 0 539 29656 3

Publisher

BSI