Quality is not an afterthought — it's embedded in every stage of our manufacturing process. We hold ISO 9001:2015 certification from Bureau Veritas for the production of hardware screws and nuts. Inspection, testing, traceability, and documentation are defined by the approved drawing, applicable standard, customer requirements, and agreed control plan.
Drawing-Controlled Quality Process
Five existing control stages, with the method, frequency, sample size, acceptance criteria, and evidence defined by the approved project requirements.
Incoming Material
Incoming material certificates, identity, dimensions, or laboratory checks are reviewed when required by the approved drawing, standard, customer requirement, and control plan.
- Mill certificate review
- Spectrometer verification
- Dimensional sampling
In-Process
First-piece, in-process, and final-piece checks are applied at the frequency defined for the approved part and process route; SPC or additional controls are used when specified.
- First-piece approval
- SPC sampling intervals
- Tool wear monitoring
Laboratory Testing
Mechanical and corrosion testing is coordinated according to the applicable product or coating standard and customer requirement. Sample size, method, duration, and acceptance criteria are confirmed in the project control plan.
- Tensile & hardness
- Torque coefficient
- Salt spray method and duration per approved specification
Final Inspection
Critical dimensions use sampling or 100% inspection as defined by the drawing, customer requirement, and control plan. Optical sorting, thread gauges, and coating-thickness checks are applied when specified.
- Optical sorting when specified
- Thread gauge GO/NO-GO
- Coating verification
Pre-Shipment Audit
Pre-shipment sampling, documentation review, labels, packaging, and certificate requirements follow the agreed control plan and purchase-order scope; ISO 2859 methods are used only when specified.
- AQL sampling plan
- Documentation review
- CoC issued
Quality Assurance & Test Support
Current ISO 9001 evidence plus project-specific inspection, testing, standards, traceability, and documentation support.
Certifications
Bureau Veritas certificate F02326Q00193R002 covers production of hardware screws and nuts and is valid from April 28, 2026 to April 27, 2029. RoHS, REACH, material, CoC, and other documents are supplied when included in the approved order scope.
Testing Capabilities
Tensile, hardness, torque, salt spray, material analysis, CMM dimensional inspection, and optical sorting can be coordinated through qualified testing and manufacturing partners when required by the project specification.
Standards Database
Interactive reference for ISO, ASTM, DIN, and JIS fastener standards. Search and browse mechanical properties, tolerances, and test specifications.
Order-Specific Quality Documentation
The exact document package is defined in the approved quotation, drawing, customer requirement, and purchase order.
Certificate of Conformance
A Certificate of Conformance can be supplied when required by the approved order and applicable specification.
Material Certificates
Material certificates or test reports can be supplied when required, with the grade, property, heat, or traceability fields defined by the project.
Inspection Reports
Dimensional, coating, corrosion, mechanical, or other inspection and test reports are supplied when specified, using the agreed method and acceptance criteria.
Batch Traceability
Batch and material traceability are configured to the customer requirement, approved drawing, packaging label, and agreed documentation scope.
Why Quality Matters
The impact of reliable fasteners on your product
Safety First
Fastener quality requirements should reflect the actual bicycle application, drawing, mating parts, load case, assembly method, and validation plan.
Defect Prevention
Optical sorting, gauges, dimensional checks, coating checks, or other controls are applied when specified by the drawing and control plan.
Documented Receiving Evidence
Agreed reports, labels, certificates, and traceability fields help the customer complete receiving inspection and supplier-quality records.
Long-Term Reliability
Coating type, corrosion test method, duration, acceptance criteria, friction condition, and torque validation are defined by the approved specification and assembly requirements.
Quality You Can Trust
PremFixer applies its ISO 9001:2015 quality system to the approved drawing and order scope. Request the certificate and a proposed sample-document package for your supplier review.