Precision Without Compromise
30 years of manufacturing expertise backed by a rigorous 100% inspection process. At Xiji Fastener, we ensure every part meets the highest global standards before it leaves our facility.
Our Standardized QC Workflow
At Xiji Fastener, quality is not just a promise; it’s a measurable standard. We utilize high-precision Rockwell hardness testers and digital micrometers to ensure that every fastener meets the exact tensile strength and dimensional requirements of our clients.
IQC
- Incoming Quality Control
01. Raw Material Audit
Rigorous verification of raw materials, including chemical composition analysis (Spectrometer testing) and MTC (Material Test Certificate) audits. We only use compliant materials like CW724R silicon brass and high-grade carbon steel.
IPQC
- In-Process Quality Control
02. Real-Time Production Monitoring
Continuous dimension checks during the CNC machining process. Our technicians perform first-article inspections and random sampling every 30 minutes to maintain tolerance stability.
OQC
- Outgoing Quality Control
03. Final Performance Testing
Comprehensive final testing including hardness testing (Rockwell), thread gauging, and salt spray resistance testing to ensure zero-defect shipment for every batch.
Advanced Inspection & Testing Laboratory
Our in-house laboratory is equipped with high-precision testing instruments to ensure every fastener meets international standards (ISO, DIN, ASTM). From raw material analysis to final performance verification, we leave no room for error.
Hardness Testing
Ensuring Grade 8.8, 10.9, and 12.9 bolts meet precise HRC standards.
Torque Strength
Guaranteeing professional breaking torque levels for all screws.
Tensile Strength
Measuring ultimate load capacity and material elongation.
Corrosion Resistance
24-96h salt spray testing to verify superior anti-rust coating.
Impact Toughness
Testing material durability against sudden high-pressure shock.
Ready to Power Your Next Project?
Professional technical support, stable supply, and competitive pricing. Our team is ready to provide you with the best fastening solutions within 24 hours.