Overview
EN 28749:1992 - Pins and grooved pins - Shear test (ISO 8749:1986) is a CEN technical standard that defines a standardized shear test method for metallic pins and grooved pins. The scope covers pins with nominal diameters from 0.8 mm up to and including 25 mm. The document reproduces the test method of ISO 8749:1986 and includes illustrative material such as a figure showing a typical test fixture.
Keywords: EN 28749, pins and grooved pins, shear test, ISO 8749, metallic pins, test method, nominal diameter 0.8–25 mm.
Key topics and requirements
- Scope and applicability
- Applies specifically to metallic pins and grooved pins within the nominal diameter range 0.8–25 mm.
- Test purpose
- Establishes a reproducible method to determine shear performance of pins used in mechanical assemblies.
- Test fixture and setup
- Includes a typical test fixture illustration to standardize specimen support and loading geometry (figure provided in the standard).
- Alignment with ISO
- EN 28749 reproduces the test content of ISO 8749:1986, ensuring international consistency in shear testing procedures.
- Reporting and interpretation
- Requires documented test conditions and results to support quality control, material comparison, and procurement specifications (standard prescribes the form and essential information to be recorded - see full standard for details).
Note: This summary does not reproduce procedural specifics. Refer to EN 28749 / ISO 8749 for exact test parameters, load rates, and acceptance criteria.
Applications
EN 28749 is useful wherever reliable shear performance data for pins is required:
- Manufacturers of pins and grooved pins - to verify product performance during R&D and production.
- Testing laboratories and QA departments - for standardized mechanical testing and certification.
- Design and mechanical engineers - to select suitable pins for assemblies subject to shear loads.
- Procurement and specification writers - to reference an accepted test method in purchase orders and technical specifications.
- Industries - automotive, aerospace, heavy machinery, electronics and construction where pins are used as fastening/locating elements.
Using EN 28749 in quality control helps reduce variability, support supplier comparisons, and provide objective data for design validation.
Related standards
- ISO 8749:1986 - the original international test method reproduced by EN 28749.
- Other fastener testing standards (tensile, hardness, fatigue) are commonly used alongside EN 28749 for comprehensive assessment of pin performance.
For complete test procedures, acceptance criteria and mandatory test details, consult the full EN 28749:1992 / ISO 8749:1986 document.