ISO 8764-2:2004

Assembly tools for screws and nuts - Screwdrivers for cross-recessed head screws - Part 2: General requirements, lengths of blades and marking of hand-operated screwdrivers

ISO 8764-2:2004 specifies general requirements, lengths of blades and marking of hand-operated screw-drivers for H and Z cross-recessed head screws as specified in ISO 4757. The specifications for blade tips are given in ISO 8764-1.

Outils de manoeuvre pour vis et écrous — Tournevis pour vis à empreinte cruciforme — Partie 2: Spécifications générales, longueurs des lames et marquage des tournevis à main

L'ISO 8764:2004 fixe les spécifications générales, les longueurs des lames et le marquage des tournevis à main pour vis à empreinte cruciforme de formes H et Z tels que définis dans l'ISO 4757. Les spécifications des extrémités des lames sont données dans l'ISO 8764-1.

General Information

• Status: Published
• Publication Date: 21-Mar-2004
• ICS: 25.140.30 - Hand-operated tools
• Technical Committee: ISO/TC 29/SC 10 - Assembly tools for screws and nuts, pliers and nippers
• Drafting Committee: ISO/TC 29/SC 10 - Assembly tools for screws and nuts, pliers and nippers
• Current Stage: 9093 - International Standard confirmed
• Start Date: 26-Jun-2025
• Completion Date: 13-Dec-2025

Relations

• Revises: ISO 8764-2:1992 - Screwdrivers for cross-recessed head screws - Part 2: General requirements, lengths of blades and marking of hand-operated screwdrivers
• Effective Date: 15-Apr-2008

Overview

ISO 8764-2:2004 is an international standard developed by the International Organization for Standardization (ISO) that specifies the general requirements, blade lengths, and marking conventions for hand-operated screwdrivers designed for cross-recessed head screws. This standard applies specifically to screwdrivers for H and Z types of cross-recessed screws as defined in ISO 4757. The document complements ISO 8764-1, which defines the specifications for the screwdriver blade tips.

Key aspects covered by ISO 8764-2:2004 ensure that screwdrivers used for assembly tasks involving cross-recessed screws maintain quality, safety, and interchangeability. This facilitates better compatibility and user experience in various industrial, manufacturing, and maintenance applications.

Key Topics

• General Requirements: The standard mandates that screwdriver handles and blades must be made from materials that ensure reliability and safe operation under normal conditions. Surfaces of the handle and blade should be smooth and free from defects that could cause injury or reduce tool performance.

• Blade Lengths: ISO 8764-2 defines two series of blade lengths for screwdrivers, tailored to different tip sizes for both PH (Phillips) and PZ (Pozidriv) forms. Blade lengths range from 25 mm up to 200 mm, allowing users to select the appropriate screwdriver size based on the application. The standard provides guidance to manufacturers on preferred and non-preferred dimensions.

• Marking Requirements: Each screwdriver must be clearly and indelibly marked with the tip form (PH or PZ), tip size, and the trademark. The marking must remain legible throughout the normal working life of the tool. Although marking the blade length is optional, if displayed, it must correspond accurately to the nominal values in the standard.

• Designation System: The standard provides a clear system for designating screwdrivers based on series (A or B), tip form, and size to ensure consistent identification.

Applications

ISO 8764-2:2004 plays a crucial role in ensuring quality and interoperability of hand-operated screwdrivers for cross-recessed head screws across various fields:

• Manufacturing and Assembly Lines: Standardized screwdrivers help maintain consistency and precision in industrial assembly processes involving fasteners with cross-recessed heads.

• Maintenance and Repair: Technicians use ISO-compliant screwdrivers to ensure proper fit and torque application, reducing the risk of screw damage or tool slippage during repair operations.

• Tool Production: Manufacturers rely on this standard to design and produce screwdrivers that meet international expectations for size, marking, and safety features.

• Quality Control: Organizations implement requirements from ISO 8764-2 as part of their quality assurance protocols to ensure all hand tools meet global benchmarks.

Related Standards

• ISO 8764-1: Specifies the detailed design and dimensions of screwdriver tips for cross-recessed head screws, complementing the blade requirements of ISO 8764-2.

• ISO 4757: Defines the types and dimensions of cross recesses for screws, including the H and Z forms referenced in ISO 8764-2.

• ISO 272: Covers hexagon product measurements, relevant when screwdrivers have hexagonal drivers near the handle for enhanced torque application.

• ISO 4759-1: Details tolerances for fasteners, which align with the hexagonal driver dimensions specified in ISO 8764-2.

• ISO 1703: Provides nomenclature for assembly tools for screws and nuts, including cross-recessed screwdrivers.

Conclusion

ISO 8764-2:2004 is essential for ensuring high-quality, safe, and consistent hand-operated screwdrivers used with cross-recessed head screws. By standardizing general requirements, blade lengths, and marking methods, this standard supports manufacturers, distributors, and end-users in maintaining uniformity and reliability in screwdriving tools. Adherence to ISO 8764-2 facilitates efficient assembly operations and helps prevent tool and fastener damage, driving improved productivity and tool traceability worldwide.

Keywords: ISO 8764-2, screwdrivers standard, cross-recessed screws, PH screwdrivers, PZ screwdrivers, blade length specification, screwdriver marking, assembly tools, hand-operated screwdrivers, ISO 4757, screwdriver design, international standard screwdriver

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 8764-2
Second edition
2004-04-01
Assembly tools for screws and nuts —
Screwdrivers for cross-recessed head
screws —
Part 2:
General requirements, lengths of blades
and marking of hand-operated
screwdrivers
Outils de manœuvre pour vis et écrous — Tournevis pour vis
à empreinte cruciforme —
Partie 2: Spécifications générales, longueurs des lames et marquage
des tournevis à main
Reference number
©
ISO 2004
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ii © ISO 2004 – All rights reserved

Foreword
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Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 8764-2 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 10, Assembly
tools for screws and nuts, pliers and nippers.
This second edition cancels and replaces the first edition (ISO 8764-2:1992), which has been technically
revised as follows:
 a designation has been added;
 in the English version, the term “point” becomes “tip” and “type” becomes “form”;
 in the French version, the term “type” becomes “forme”.
ISO 8764 consists of th
...

NORME ISO
INTERNATIONALE 8764-2
Deuxième édition
2004-04-01
Outils de manœuvre pour vis et écrous —
Tournevis pour vis à empreinte
cruciforme —
Partie 2:
Spécifications générales, longueurs des
lames et marquage des tournevis à main
Assembly tools for screws and nuts — Screwdrivers for cross-recessed
head screws —
Part 2: General requirements, lengths of blades and marking of
hand-operated screwdrivers
Numéro de référence
©
ISO 2004
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Publié en Suisse
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Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux de
normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général confiée
aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire partie du
comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d'élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
L'attention est appelée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable de ne
pas avoir identifié de tels droits de propriété et averti de leur existence.
L'ISO 8764-2 a été élaborée par le comité technique ISO/TC 29, Petit outillage, sous-comité SC 10, Outils de
manœuvre pour vis et écrous, pinces et tenailles.
Cette deuxième édition annule et remplace la première édition (ISO 8764-2:1992), qui a fait l’objet d’une
révision technique avec les modifications suivantes:
 une désignation a été incluse;
 dans la version anglaise, le terme «point» est devenu «tip» et «type» est devenu «form»;
 dans la version française, le terme «type» et devenu «
...