EN ISO 8733:1997

Parallel pins with internal thread, of unhardened steel or austenitic stainless steel (ISO 8733:1997)

Zylinderstifte mit Innengewinde aus ungehärtetem Stahl und austenitischem nichtrostendem Stahl (ISO 8733:1997)

Diese Internationale Norm beschreibt die Eigenschaften von Zylinderstiften mit Innengewinde aus ungehärtetem Stahl und austenitischem nichtrostendem Stahl mit metrischen Abmessungen und Nenndurchmessern d1 von 6 bis einschließlich 50 mm.

Goupilles cylindriques à trou taraudé en acier non trempé et en acier inoxydable austénitique (ISO 8733:1997)

La présente Norme internationale prescrit les caractéristiques des goupilles cylindriques à trou taraudé en acier non trempé et en acier inoxydable austénitique de diamètre nominal, d1, de 6 mm à 50 mm inclus.

Valjasti zatiči z notranjim navojem iz nekaljenega ali iz avstenitnega nerjavnega jekla (ISO 8733:1997)

General Information

• Status: Published
• Publication Date: 14-Nov-1997
• ICS: 21.060 - Fasteners
• Technical Committee: CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
• Drafting Committee: CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 04-Feb-2008
• Completion Date: 04-Feb-2008
• Ref Project: SIST EN ISO 8733:2001 - Parallel pins with internal thread, of unhardened steel or austenitic stainless steel (ISO 8733:1997)

Relations

• Replaces: EN 28733:1992 - Parallel pins with internal thread, unhardened (ISO 8733:1986)
• Effective Date: 22-Dec-2008

Overview

EN ISO 8733:1997 (ISO 8733:1997) specifies the characteristics of parallel pins with internal thread made from unhardened steel or austenitic stainless steel. The standard covers nominal diameters from 6 mm to 50 mm and defines dimensional, material, surface and acceptance requirements for these cylindrical dowel-type fasteners used in precision assemblies.

Key topics and technical requirements

• Dimensions and tolerances: Nominal diameters d = 6–50 mm with specified nominal lengths and dimensional limits (see table in the standard). Metric screw threads for the internal bore follow ISO 965-2 with tolerance 6H.
• Materials and grades: Two main material categories are referenced: unhardened steel (St) and austenitic stainless steel (e.g., grade A1). Other materials may be agreed between customer and supplier.
• Hardness: The standard gives hardness ranges for the materials (document specifies hardness limits applicable to each material category).
• Surface finish and coatings: Pins are normally supplied in natural finish or with protective coatings by agreement. Preferred coatings listed include black oxide, phosphate conversion coatings and zinc plating with chromate conversion (see ISO 9717 and ISO 4042).
• Surface roughness and workmanship: Surface roughness requirement (Rz/Ra depending on measurement - document specifies R < 0.8 µm) and stipulations that pins be free of irregularities, burrs or detrimental defects.
• Acceptance and inspection: Acceptance inspection procedures are covered by ISO 3269.
• Designation: Standardized designation examples are provided (e.g., “Parallel pin ISO 8733 – 6 × 30 – St” or “Parallel pin ISO 8733 – 6 × 30 – A1”).

Applications and users

• Practical applications:
  • Precise location, alignment and shear load transfer in mechanical assemblies, jigs, fixtures and tooling.
  • Use where an internal threaded bore is required for removal or fastening convenience.
  • Automotive, machinery, tooling and assembly-line components that require reliable dowel pins with controlled tolerances.
• Who uses this standard:
  • Design engineers and mechanical designers selecting dowel/parallel pins.
  • Fastener manufacturers and suppliers producing pins to specified tolerances and finishes.
  • Quality control, inspection teams and purchasing departments verifying compliance and acceptance criteria.

Related standards

• ISO 965-2 - Metric screw threads: limits of sizes (6H tolerance)
• ISO 3269 - Fasteners: acceptance inspection
• ISO 3506-1 - Corrosion-resistant stainless steel fasteners (material properties)
• ISO 4042 - Fasteners: electroplated coatings
• ISO 9717 - Phosphate conversion coatings

Keywords: EN ISO 8733, ISO 8733:1997, parallel pins, internal thread, unhardened steel, austenitic stainless steel, fasteners, metric thread 6H, ISO 965-2, surface finish, acceptance inspection.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2001
1DGRPHãþD
SIST EN 28733:1996
9DOMDVWL]DWLþL]QRWUDQMLPQDYRMHPL]QHNDOMHQHJDDOLL]DYVWHQLWQHJDQHUMDYQHJD
MHNOD,62
Parallel pins with internal thread, of unhardened steel or austenitic stainless steel (ISO
8733:1997)
Zylinderstifte mit Innengewinde aus ungehärtetem Stahl und austenitischem
nichtrostendem Stahl (ISO 8733:1997)
Goupilles cylindriques a trou taraudé en acier non trempé et en acier inoxydable
austénitique (ISO 8733:1997)
Ta slovenski standard je istoveten z: EN ISO 8733:1997
ICS:
21.060.50 =DWLþLåHEOML Pins, nails
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 8733
Second edition
1997-11-15
Parallel pins with internal thread,
of unhardened steel and austenitic
stainless steel
Goupilles cylindriques à trou taraudé en acier non trempé et
en acier inoxydable austénitique
A
Reference number
ISO 8733:1997(E)
ISO 8733:1997(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide
federation of national standards bodies (ISO member bodies). The work of
preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which
a technical committee has been established has the right to be represented
on that committee. International organizations, governmental and non-
governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 8733 was prepared by Technical Committee
ISO/TC 2, Fasteners.
This second edition cancels and replaces the first edition (ISO 8733:1986),
which has been technically revised.
©  ISO 1997
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet [e-mail]
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii
©
INTERNATIONAL STANDARD  ISO ISO 8733:1997(E)
Parallel pins with internal thread of unhardened steel
and austenitic stainless steel
1 Scope
This International Standard specifies the characteristics of parallel pins with internal thread of unhardened
steel and austenitic stainless steel with nominal diameters d from 6 mm to 50 mm inclusive.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this
International Standard. At the time of publication, the editions indicated were valid. All standards are su
...