© British Standards Institution 2025
Site Map
Standard
Withdrawn

BS 21:1985

Specification for pipe threads for tubes and fittings where pressure-tight joints are made on the threads (metric dimensions)

Published:

30 Sep 1985

•

Withdrawn:

30 Apr 2016

Overview
Preview
References
History
Visit the preview section for more information
Product Details
Descriptors
Pipe fittings
Longscrews
Internal threads
Pipes
Dimensional tolerances
Dimensions
Pressure pipes
Gas-powered devices
Thread gauges
Designations
Thread forms
Taper threads
External threads
Screwed fittings
Pipe couplings
Threads
Parallel threads
ICS Codes
21.040.10 Metric screw threads
Committee
ISE/110
International relationships
—
ISBN
0 580 14556 5
Publisher
BSI