​Updated Test Specification: Match Shear Performance Between Stamped Components & Structural Bolts Under Assembly Conditions

The specification for shear-strength testing of structural bolts has been updated. Apart from the performance of bolts themselves, the new standard pays more attention to the comprehensive shear performance under the working condition where bolts cooperate with stamped components. It puts forward joint constraints on the aperture tolerance of stamped parts, contact-surface condition and the position of bolt shear planes, which is particularly critical for steel-structure projects that extensively adopt stamped connecting plates. This update to the specification for shear-strength testing of structural bolts breaks the traditional pattern of only testing individual bolt performance. For the first time, it incorporates the assembly working condition of stamped components into the test-evaluation system. It has become a core hotspot for quality control of supporting components in steel-structure engineering this year, and also provides brand-new technical acceptance criteria for the integrated supply of stamped parts plus bolts.

In previous industrial testing, inspections only focused on the mechanical performance of individual bolts, ignoring the influence of stamping plate tolerance, hole deviation and contact flatness. In actual assembly scenarios, even qualified bolts may face shear failure risks when matched with unqualified stamped components, causing stress concentration and unstable structural connection. The new specification effectively solves this long-term industry defect by realizing integrated performance evaluation of bolts and stamped parts.

The upgraded standard clarifies comprehensive testing rules for assembly matching conditions. It strictly regulates hole tolerance, plate thickness adaptation and contact precision of stamped components, ensuring that test data is highly consistent with real engineering application effects. Meanwhile, it optimizes the third-party verification system and makes project acceptance more standardized and reliable.

As a professional supplier integrating fastener and stamping part supply, Jiaxing Aoke Trading cooperates with Jiaxing Aoke Hardware in Jiaxing, Zhejiang. We have fully upgraded our internal quality inspection system to adapt to the new testing rules. For all export orders, we conduct dual verification of bolt shear performance and stamping part tolerance adaptation, ensuring stable and consistent bearing capacity of the entire assembly structure.

Key tips for overseas purchasers:

1. Confirm stamping hole tolerance together with structural bolt specifications in early-project phase to avoid abnormal shear stress after assembly.

2. Run shear-strength assessment with stamped samples identical to real-project parts.

3. Update standard references in technical documents to prevent acceptance disputes from version gaps.

With the continuous upgrading of industrial standards, integrated matching supply has become the core trend of engineering accessory procurement. By providing one-stop fastener and stamping component solutions, Jiaxing Aoke Trading helps global clients reduce project risks and improve overall engineering safety and compliance.