• BS 21:1985

BS 21:1985

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

BSI Group, 09/30/1985

Publisher: BS

File Format: PDF

$90.00$180.34


Published:30/09/1985

Pages:20

File Size:1 file , 840 KB

Note:This product is unavailable in Ukraine, Russia, Belarus

Range of threads from 1/16 to 6, together with thread forms, dimensions and tolerances, designations; includes appendices for recommended gauging systems and methods of use of gauges. Requirements for jointing threads for taper external threads, for assembly with either tapes or parallel internal threads and for longscrew threads for longscrews specified in BS 1387.

Cross References:
BS 919:Part 2
BS 1387
BS 2779


Partially replaced by BS EN 10226-1:2004.

Incorporates the following:
AMD 6633 published 21 December 1990

More BS standard pdf

BS 6068-5-5.1:1990

BS 6068-5-5.1:1990

Water quality. Biological methods-Determination of the inhibition of the mobility of Daphnia magna Straus (Cladocera, Crustacea)

$125.00 $251.46

BS 6102-5:1990

BS 6102-5:1990

Cycles-Specification for bicycle tyre designations and dimensions

$76.00 $152.40

BS 7141-2:1991

BS 7141-2:1991

Narrow fabrics-Specification for cotton webbings for personal load carrying purposes

$90.00 $180.34

BS 4215-9:1990

BS 4215-9:1990

Resistance spot welding electrodes, electrode holders and ancillary equipment-Specification for electrode adaptors, male taper 1:10, conical fixing 1:10

$125.00 $251.46