Overview
ISO 8764-2:2004 is an international standard from ISO that specifies the general requirements, blade lengths, and marking of hand-operated screwdrivers designed for cross-recessed head screws. Specifically, it applies to screwdrivers intended for use with H and Z cross-recessed head screws as defined in ISO 4757. Key aspects such as screwdriver material, handle finish, blade lengths, and marking criteria are addressed to promote safety, consistency, and interchangeability in screwdriver manufacturing and use.
This standard is an essential reference for manufacturers, quality control departments, and professionals in assembly industries where reliable and standardized hand tools are critical.
Key Topics
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Scope and Applicability
- Focuses on hand-operated screwdrivers for H and Z cross-recessed head screws.
- References compatible screw head standards for full interoperability.
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General Requirements
- Outlines requirements for materials, handle shapes, and finishes to ensure safety and usability.
- Mandates that both handle and blade must be free of flaws or roughness that could cause accidents.
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Blade Lengths
- Specifies two series of blade lengths for different tip sizes (PH and PZ), providing flexibility while ensuring compatibility and standardization.
- Allows optional hexagonal features near the handle on larger screwdrivers, facilitating use with auxiliary tools.
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Marking Requirements
- Defines criteria for clear, indelible markings that indicate tip form (PH or PZ), tip size, and manufacturer’s trademark.
- Recommends marking the blade length, if provided, to match standard measurements.
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Designation
- Offers a simple, standardized model for designating screwdriver types to simplify communication and procurement.
Applications
ISO 8764-2:2004 supports a wide range of industries and applications where hand-operated screwdrivers for cross-recessed head screws are employed. Principal areas of use include:
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Manufacturing and Assembly
- Ensures tool compatibility and safety in electronics, automotive, aerospace, and general industrial assembly.
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Tool Design and Production
- Guides manufacturers in designing screwdrivers that comply with international best practices and market requirements.
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Quality Assurance
- Enables inspectors and procurement specialists to verify tool compliance with globally accepted specifications, supporting quality control and supply chain efficiency.
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Product Marking and Identification
- Facilitates easy identification and traceability of tools across production and maintenance environments.
By adhering to ISO 8764-2:2004, organizations and professionals can optimize tool performance, ensure worker safety, and improve product reliability through consistent use of standardized screwdrivers.
Related Standards
For full implementation and understanding, ISO 8764-2:2004 should be used in combination with the following related standards:
- ISO 8764-1 - Driver tips for cross-recessed head screwdrivers (details tip designs and compatibilities)
- ISO 4757 - Specifications for cross-recessed screw head types H and Z
- ISO 272 - Standard widths across flats for hexagon products
- ISO 4759-1 - Tolerances for bolts, screws, studs, and nuts
- ISO 1703 - Nomenclature for assembly tools for screws and nuts
By referencing these related documents, stakeholders ensure comprehensive compliance with international standards for assembly tools.
Keywords: ISO 8764-2, screwdriver standard, cross-recessed head screws, hand-operated screwdrivers, blade lengths, tool marking, assembly tools, ISO standards, H and Z screws, tool manufacturing, quality control.
Open preview (PDF)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