Overview
EN ISO 1207:2011 (ISO 1207:2011) defines the characteristics of slotted cheese head screws of product grade A with metric threads from M1,6 to M10 inclusive. Published by CEN/ISO, this standard ensures consistent dimensions, tolerances and acceptance criteria for these fasteners and promotes interchangeability across suppliers and industries.
This International Standard is the third edition (2011) and supersedes earlier editions. It includes references to dimensional figures and tables and cross-references key ISO documents for thread forms, tolerances and mechanical properties.
Key Topics
- Scope and applicability: Specifies slotted cheese head screws product grade A for threads M1,6–M10 and intended use where standardised dimensions and tolerances are required.
- Dimensions and design: Provides dimensional specifications (see figure and table references in the standard) and defines head, slot and shank relationships relevant to manufacturing and inspection.
- Material and mechanical properties: Covers typical material groups (steel, stainless steel, non‑ferrous metals) and points to related standards for property classes (e.g., ISO 898‑1, ISO 3506‑1).
- Tolerances and quality: Identifies thread tolerance class (6g) and product grade A tolerances; surface discontinuity and acceptance criteria are referenced to ISO 6157‑1 and ISO 3269.
- Finishes and coatings: Specifies that electroplating, passivation and zinc flake coatings should comply with ISO 4042, ISO 16048 and ISO 10683 respectively; additional finishes to be agreed between supplier and purchaser.
Applications
EN ISO 1207:2011 is used by designers, manufacturers, quality engineers and procurement teams who require:
- Interchangeable fasteners for assembly lines, maintenance and replacement parts
- Specification of screw dimensions for drawing callouts and BOMs (bill of materials)
- Quality control and inspection criteria for incoming components
- Material and finish selection guidance aligned with mechanical property and corrosion resistance requirements
Typical sectors using these screws include machinery manufacturing, electronics assembly, precision equipment and general engineering where small to medium metric screw sizes (M1.6–M10) are specified.
Related Standards
The standard cross-references essential ISO documents that should be consulted together with EN ISO 1207:2011:
Practical value: Applying EN ISO 1207:2011 ensures fastener compatibility across suppliers, reduces procurement risk, and simplifies quality assurance for assemblies that use slotted cheese head screws within the specified thread range.