6 laboratories in United States are accredited by A2LA under ISO/IEC 17025 to perform ISO 6157 testing. From the accredited scope text: “ISO 6157-1, ISO 6157-3; SAE J123, SAE J1061 Surface Discontinuities of Internally Threaded Fasteners ASTM F812/F812M; SAE J122 Torque MIL-DTL-18240 Torsional Strength Test of Thread Rolling and Self D” “ISO 6157 Ductility SAE J78, J81 Hydrogen Embrittlement / Debrittlement ASTM F519, F606/F606M; NASM 1312-5 Verification (Stress Durability) USCAR-5, USCAR-7 Prevailing Torque IFI 100/107, ASME B18.6.6” “ISO 6157-1, 6157-3 Measurement of Coating Thickness ASTM B487 (Using Computer Imaging) Microetching AMS 2643; ASTM E3, E407 Metals and Metal Products, Fasteners: Axial Tensile Strength of Full-Sized T” “ISO 6157; SAE J122, J123 Plating Thickness (By Metallography and X-ray spectrometry) ASTM B487, B568 Salt Spray ASTM B117; ISO 9227 Passivation of Stainless Steel ASTM A380/A380M 8/13/25 Nondestructiv”
Cleveland, OH, US
ISO 6157 Ductility SAE J78, J81 Hydrogen Embrittlement / Debrittlement ASTM F519, F606/F606M; NASM 1312-5 Verification (Stress Durability) USCAR-5, USCAR-7 Prevailing Torque IFI 100/107, ASME B18.6.6 Proof (Internal & External Thre
Elmhurst, IL, US
ISO 6157-3; SAE J123, J1601; ASTM F788-13 Tensile for Externally Threaded Fasteners (Axial, Wedge, Proof) ASTM F606/F606M Torsion ASTM F606 Embrittlement of Metallic Coated and Non-Coated/Uncoated Externally Threaded Fasteners ASTM F6
Huntington Beach, CA, US
ISO 6157-1, ISO 6157-3; SAE J123, SAE J1061 Surface Discontinuities of Internally Threaded Fasteners ASTM F812/F812M; SAE J122 Torque MIL-DTL-18240 Torsional Strength Test of Thread Rolling and Self Drilling Tapping Screws ASME B18
Winona, MN, US
ISO 6157; SAE J122, J123 Plating Thickness (By Metallography and X-ray spectrometry) ASTM B487, B568 Salt Spray ASTM B117; ISO 9227 Passivation of Stainless Steel ASTM A380/A380M 8/13/25 Nondestructive Analysis
Carol Stream, IL, US
ISO 6157-1, 6157-3; SAE J123, J1061 Plating Thickness ASTM B487; ISO 1463 I. Dimensional Testing: Parameter/Equipment Range CMC1 (±) Comments Linear2 -1D -2D Up to 1.0000 in Up to 25 mm Up to 6.
St. Paul, MN, US
ISO 6157-1, 6157-3 Measurement of Coating Thickness ASTM B487 (Using Computer Imaging) Microetching AMS 2643; ASTM E3, E407 Metals and Metal Products, Fasteners: Axial Tensile Strength of Full-Sized Threaded Fasteners AC
This page is a fixed slice of the register: every ISO 6157 scope we hold for United States. Search narrows it further by city, accreditation body, or a term from the scope text itself.
Search labs in United StatesAmerican Association for Laboratory Accreditation (A2LA) is the primary accreditation body issuing ISO/IEC 17025 accreditation for testing laboratories in United States.
ISO/IEC 17025 is the international standard for the competence of testing and calibration laboratories. Accreditation to this standard provides independent confirmation that a laboratory operates a quality management system and is technically competent to produce valid results within its declared scope.