Hydraulic Universal Testers Equipped with Bolt Stretching Accessories Meet Global Fastener Standards

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June 4, 2025 - Leading testing equipment manufacturers have introduced hydraulic universal testing machines with specialized bolt stretching accessories to comply with international fastener standards ISO 898-1, ISO 3506-1, and ASTM F606. These systems enable precise mechanical property testing for threaded fasteners across industries.

The upgraded testing configuration features:

  • Hydraulic loading systems capable of 300kN capacity for high-strength fastener evaluation

  • Customized gripping accessories specifically designed for bolt stretching tests

  • Digital controllers with pre-programmed test routines for ISO 898-1 (carbon/alloy steel), ISO 3506-1 (stainless steel), and ASTM F606 standards

  • Real-time data acquisition meeting Class 1 accuracy per ISO 7500-1

This advancement allows manufacturers to conduct comprehensive fastener testing including: 

• Tensile strength verification • Proof load testing • Stress relaxation analysis • Ductility measurements

The integrated systems are now being adopted by aerospace, automotive, and construction suppliers to ensure fastener reliability while reducing testing time by 30% compared to conventional methods.

Video for reference: https://youtu.be/CirlL8aWLAc