Same fasteners. Same machines. Same drawings...but Different results. In many fastener plants, a lot is approved in one shift and rejected in the next. Not because the parts changed—but because inspection did . What really causes the inconsistency? Manual inspection depends on human factors: Different inspectors, different judgments Different gauges, different readings Time pressure and shift changes Fatigue by the end of the day The result? OK becomes NG. NG becomes OK. And quality turns unpredictable. Why This Is Dangerous for Fasteners Fasteners may be small, but the consequences of defects are not. A missed thread burr. A minor diameter variation. A surface crack ignored during sampling. These don’t always fail immediately—but when they do, they fail in the field , not on the shop floor. For automotive, aerospace, and critical assemblies, inconsistent inspection is a hidden risk . The Solution: Optical Inspection Machine Automated optical inspection rem...