Standard

BS EN 4163:2026

Aerospace series. Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated. Classification: 1 100 MPa (at ambient temperature) / 235 °C

Current

•

Published:

31 Mar 2026

1 Scope

This document specifies the characteristics of screws, 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated.

Classification: 1 100 MPa1/235 °C.2

Product Details

Descriptors

Threads

Metal plating

Recessed-head fasteners

Marking

Fasteners

Screws (bolts)

Metal coatings

Aircraft components

Threaded fasteners

Dimensions

Countersunk fasteners

Surface treatment

Cruciform-head fasteners

Weight (mass)

Alloy steels

Designations

Cadmium

ICS Codes

49.030.20 Bolts, screws, studs

Committee

ACE/12

International relationships

Identical to:

EN 4163

ISBN

978 0 539 34289 5

Publisher

BSI