Quality Inspection
8+
Testing Processes
20+
Testing Equipments
99.5%+
Qualification Rate
20+
Quality Inspector
Fastener Quality Inspection
From raw materials to finished products, we implement rigorous quality inspections across all fastener types. Our advanced testing equipment ensures strength, durability, and reliability at every stage, guaranteeing products that meet the highest international standards.
Dimensional & Tolerance Testing

Dimensional Inspection
Ensures that every fastener meets precise size and tolerance requirements.

Go Gauge Testing
Confirms that fasteners fit correctly within the specified tolerance limits.

No-Go Gauge Testing
Verifies that fasteners do not exceed the maximum allowable dimensions.
Mechanical Performance Testing

Hardness Testing
Measures the material’s resistance to deformation to ensure durability and strength.

Torque Testing
Evaluates the fastening performance by testing the torque required for tightening.

Tensile Testing
Determines the fastener’s load-bearing capacity under tension and pressure.
Material & Metallurgical Testing

Spectrometer Analysis
Identifies and verifies material composition through precise spectrographic testing.

Metallographic Examination
Observes the microstructure of metals to assess quality and detect defects.
Surface & Environmental Testing

Coating Thickness
Ensures uniform plating or coating layers for protection and performance.

Salt Spray Testing
Simulates harsh environments to evaluate corrosion resistance of fasteners.

RoHS Testing
Ensures fasteners comply with regulations limiting hazardous substances.
Non-Destructive & Automated Testing

Spectrometer Analysis
Detects surface and subsurface cracks or flaws in ferromagnetic materials.

Metallographic Examination
Uses automated vision systems to detect surface defects and dimensional variations.