Torque Calibration Services in Southern California
Torque Calibration Services from QSI
Accurate torque measurement is critical to the safety, reliability, and quality of countless mechanical assemblies, from aerospace fasteners and automotive components to pipeline connections and precision manufacturing. When torque measuring instruments drift out of calibration, the consequences can be catastrophic—leading to fastener failures, structural integrity problems, product recalls, safety hazards, and costly liability issues.
Quality Surveillance, Inc., backed by the trusted Accredited Labs network, provides comprehensive torque calibration services that ensure your torque measurement tools deliver the precision and reliability your critical assembly operations demand.
What is Torque Calibration?
Torque calibration is the systematic process of verifying and adjusting torque measuring instruments to ensure they accurately measure rotational force across their specified measurement ranges. This essential service compares your torque instruments against certified reference torque standards with known, traceable values to identify any deviations from their specified accuracy ranges.
During torque calibration, experienced technicians evaluate each instrument's performance using precisely applied torque loads throughout the instrument's measurement range. They document any measurement variations discovered and perform necessary adjustments to restore accuracy to manufacturer specifications. When instruments cannot be adjusted to meet their original specifications, detailed calibration reports provide the deviation data essential for your corrective actions and informed maintenance or replacement decisions.
The calibration process follows rigorous protocols established by international standards and industry specifications, ensuring consistency, reliability, and traceability. Each calibrated torque instrument receives comprehensive documentation that traces its accuracy back to national torque measurement standards, providing the measurement traceability that quality management systems, safety requirements, and assembly specifications demand.
Why Torque Calibration is Essential for Your Operations
Safety and Structural Integrity
Proper torque application is critical to the structural integrity and safety of mechanical assemblies. Under-torqued fasteners can loosen and fail, while over-torqued fasteners can strip threads, crack components, or create stress concentrations that lead to premature failure. In safety-critical applications like aerospace, automotive, and construction, torque accuracy can literally be a matter of life and death.
Product Quality and Assembly Reliability
Manufacturing operations depend on precise torque control to ensure consistent product quality and assembly reliability. Whether assembling automotive engines, aircraft components, or precision machinery, proper torque application ensures optimal clamping force, prevents component damage, and maintains assembly integrity throughout the product's service life.
Regulatory Compliance and Standards
Industries from aerospace to medical devices operate under strict regulatory frameworks requiring traceable torque measurements and documented assembly procedures. FAA regulations, IATF 16949 automotive quality standards, and medical device requirements mandate that torque measuring equipment be properly calibrated and maintained. Comprehensive calibration records are essential for regulatory compliance and product certification.
Warranty Protection and Liability Management
Improper torque application can void product warranties, create liability issues, and result in costly field failures. Documented torque calibration demonstrates proper assembly procedures and helps protect against warranty claims and liability issues related to fastener failures or assembly problems.
Process Control and Consistency
Automated assembly lines and production processes increasingly rely on torque measurement for quality control and process verification. Consistent torque application ensures repeatable assembly quality, prevents process variations, and helps identify potential assembly problems before they result in product failures.
Cost Control and Efficiency
Accurate torque measurement helps prevent costly rework, reduces assembly time, and minimizes material waste from damaged components. Proper torque calibration ensures optimal assembly efficiency and helps avoid the hidden costs associated with torque-related quality problems.

Why Choose QSI for Torque Calibration?
At Quality Surveillance, Inc. we combine the personalized service of a local provider with the resources and reliability of a national network.
Powered by Accredited Labs
As part of the Accredited Labs family, Quality Surveillance, Inc. combines local, personalized service with the resources and expertise of a national calibration network. This partnership ensures consistent quality, technical support, and the capabilities needed to handle your most challenging calibration requirements.
Personalized Customer Service
We believe in building long-term relationships with our customers. That's why we prioritize clear communication, consistency, and reliability. Our team takes time to understand your specific needs, applications, and challenges, so we can provide calibration solutions that support your operational goals and quality objectives.
ISO/IEC 17025 Accreditation
We operate under the rigorous ISO/IEC 17025 standard, which demonstrates our technical competence and quality management system. This internationally recognized accreditation means our calibration results are accurate, reliable, and globally accepted. Our technicians undergo continuous training in evolving technologies and techniques.
Comprehensive Documentation
We go beyond calibration certificates, providing you with the documentation and support your quality system needs. Our detailed reports include measurement data, uncertainty analysis, and recommendations for calibration intervals. We also maintain comprehensive records for easy certificate retrieval and audit support.
Flexible Service Options
We understand that every business has unique operational requirements. That's why when possible we offer on-site calibration services to reduce your downtime. For instruments requiring controlled environments or specialized equipment, our fully equipped laboratories provide optimal calibration conditions.
Fast Turnaround Times
Production schedules don't wait for calibration delays. We prioritize quick turnaround times without compromising quality, helping you maintain operational efficiency while meeting calibration requirements. Our streamlined processes and scheduling ensure your instruments return to service as quickly as possible.
Audit-Ready Torque Calibration in 3 Simple Steps
Submit Your Equipment List
Send us a list of the equipment you need calibrated, and we’ll provide a tailored quote with clear pricing—no hidden fees.
Schedule Your Calibration
Choose a convenient time for an in-lab or on-site equipment calibration. Our certified technicians ensure precision and compliance with ISO/IEC 17025 standards.
Stay Compliant & Audit-Ready
Receive detailed calibration reports and certification, giving you peace of mind for audits and operational excellence.