Overview
SIST EN 28736:1996 specifies the requirements for taper pins with internal thread, unhardened in accordance with international standards (ISO 8736:1986). This standard is essential for ensuring consistent product characteristics, offering detailed specifications for pins with metric dimensions and nominal diameters from 6 mm up to 50 mm. It covers thread sizes ranging from M6 to M50 and nominal lengths from 16 mm up to 200 mm. SIST EN 28736:1996 aligns with European standards and supports uniformity in design, manufacturing, and interchangeability of mechanical fasteners.
Key Topics
- Product Specification
- Defines dimensions, tolerances, and mechanical properties for unhardened taper pins
- Covers a comprehensive range of nominal diameters (6 mm to 50 mm)
- Details thread sizes: M6, M8, M10, up to M50
- Technical Requirements
- Includes requirements for internal threading
- Specifies lengths from 16 mm to 200 mm
- Refers to associated international documentation for verification
- Identification and Designation
- Presents a standardized way to reference and designate taper pins in technical documentation and procurement
Applications
Taper pins with internal thread as described in SIST EN 28736:1996 are widely used throughout various engineering fields. Their precise dimensions and thread specifications make them suitable for:
- Mechanical Engineering
- Used as alignment, locating, or fastening components in machinery assemblies
- Easily installed and removed for maintenance due to the internal thread
- Manufacturing and Construction
- Ideal for securing parts where precise positioning is needed
- Suitable for disassemblable joints in structural and mechanical systems
- Automotive and Aerospace
- Employed in assemblies requiring strong shear resistance and accurate alignment
- General Industrial Applications
- Applicable anywhere a reliable, metric-sized taper pin is required
Standardized specifications ensure interchangeability and compatibility across manufacturers and international markets, streamlining procurement and replacement processes.
Related Standards
When implementing or specifying SIST EN 28736:1996, it is important to consider related international and European standards to ensure full compliance and compatibility:
- ISO 8736:1986 - The foundational international reference for taper pins with internal thread, unhardened
- EN 28736:1992 - The European adoption of ISO 8736, harmonized under SIST EN 28736:1996
- ISO 2339 - Covers taper pins without internal thread
- ISO 8737 - Specifies hardened taper pins for applications requiring increased strength
- ISO 8992 - General requirements for fasteners, including dimensions and tolerances
Summary
SIST EN 28736:1996 provides clear specifications for unhardened taper pins with internal thread, facilitating international trade, simplifying maintenance, and ensuring product compatibility. By adhering to this standard, organizations ensure the quality and interoperability of their mechanical fasteners within a broad range of industrial applications.