The Applied Technical Services Family of Companies (ATS FoC) conducts ISO 898-1 testing to evaluate the mechanical properties and performance of carbon steel and alloy steel fasteners. ISO 898-1 specifies mechanical and physical property requirements by property class, using a numbering system where the first digit indicates ultimate tensile strength and the second indicates yield threshold. We provide thorough verification and testing to ensure your fasteners meet these standards, reducing risk and supporting field reliability. Our services help manufacturers, suppliers, and end users confirm compliance with strength, hardness, ductility, and dimensional requirements.
What Fasteners Can ISO 898- 1 Testing Evaluate?
ISO 898-1 applies to carbon steel and alloy steel bolts, screws, and studs with defined property classes. Our laboratory tests fasteners with metric coarse and fine-pitch threads that fall within the standard’s dimensional and property limits. These evaluations support fasteners used in critical industrial applications, including structural assemblies, machinery, automotive systems, energy equipment, and general manufacturing. Our testing services include:
- Bolts and screws
- Studs and related externally threaded fasteners
- Coarse pitch and fine pitch threaded products
- Fasteners across applicable property classes
About Our Fastener Testing Services
Our ISO 898-1 testing determines fastener mechanical properties to support product development, production control, supplier qualification, and failure analysis. Our laboratory uses skilled personnel, advanced equipment, and standardized procedures to evaluate fasteners according to applicable requirements. We customize testing programs to fastener type, property class, dimensions, and customer specifications.
We provide tensile testing, proof load testing, hardness evaluation, elongation and reduction of area measurements, and other assessments required for ISO 898-1 compliance. Our technical team helps customers determine test requirements and develop efficient testing programs for qualification and quality assurance. We assist clients in identifying issues such as inadequate material strength, improper heat treatment, insufficient hardness, and other factors that may impact fastener reliability.
What Properties Does ISO 898- 1 Specify for Carbon Steel and Alloy Steel Fasteners?
ISO 898-1 defines mechanical and physical property requirements according to fastener property class. These criteria differentiate fasteners by strength and performance. Our evaluations provide insight into:
- Tensile strength and proof load
- Yield or stress characteristics and elongation
- Hardness and reduction of area
- Decarburization and carburization considerations
These properties enable manufacturers to verify that fasteners achieve the required balance of strength and ductility for their applications, and testing also supports quality control and consistency across production batches.
Contact Us
Call +1 (888) 287-5227 to discuss your ISO 898-1 testing needs. Our technical team will develop testing programs tailored to your fastener specifications, property class, and quality objectives.

