The Applied Technical Services Family of Companies (ATS FoC) specializes in wedge tensile fastener testing and assesses the tensile strength, ductility, and head integrity of full-size fasteners. In this test, a specified wedge is placed under the fastener head, then an axial tensile load is applied until the fastener fractures or meets the required load. The wedge increases stress at the head-to-shank connection, allowing us to determine whether a fastener can perform under demanding conditions. This testing supports quality assurance, product development, supplier qualification, failure analysis, and specification compliance for bolts, screws, studs, and similar fasteners.
Can Wedge Tensile Testing Identify Fastener Manufacturing Defects?
Wedge tensile testing reveals manufacturing concerns when defects, material inconsistencies, improper processing, or dimensional issues cause premature fracture, insufficient tensile performance, or failure. These results can help manufacturers identify quality concerns before defective fasteners reach service.
About Our Fastener Testing Services
Our wedge tensile fastener testing accommodates various externally threaded fasteners and meets diverse customer requirements. Depending on the relevant specification, we can evaluate:
- Full-size bolts, screws, and studs
- Head integrity and ductility
- Tensile strength and fracture behavior
- Manufacturing and material consistency
Our technicians use proper testing fixtures and wedge configurations, following procedures defined by the relevant specification. The resulting data supports engineering evaluations, quality control, supplier qualification, and product acceptance. Wedge tensile testing also complements other fastener evaluations, such as proof load, hardness, and conventional tensile testing.
What Standards Apply to Wedge Tensile Fastener Testing?
ASTM F606 outlines procedures for determining the mechanical properties of externally and internally threaded fasteners and is a key standard for wedge tensile evaluations. Other standards specify mechanical property requirements based on fastener type, material, property class, and application. We also conduct fastener tensile tests in accordance with the following:
- ISO 898 1
- ISO 898 2
- SAE J429
- SAE J995
- SAE J1199
Additional specifications can apply to tensile testing based on the material or testing objective, including:
- ASTM B557
- ASTM E8
- EN 10002 1
- EN 10002 2
- ISO 6892 1
Contact Us
Our laboratory delivers dependable wedge tensile fastener testing tailored to your product specifications and quality objectives. We can help you select an appropriate testing approach and generate results that support engineering, manufacturing, and compliance decisions. Submit an online inquiry or call +1 (888) 287-5227 to discuss your wedge tensile fastener testing requirements and develop a testing program for your application.
