GB862.2 DIN6798A A2 304 Stainless Steel External Serrated Toothed Lock Washer Gasket M2.5–M24

GB862.2 DIN6798A A2 304 Stainless Steel External Serrated Toothed Lock Washer Gasket M2.5–M24

DIN6798A / GB862.2 standard 304 stainless steel external toothed (serrated) lock washers. The external teeth on the outer edge bite into both the bolt head and the workpiece surface, providing superior anti-loosening resistance. The larger tooth contact area of external teeth vs. internal teeth makes these ideal for soft materials and large-diameter bolt heads.

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Key Specifications

Material	304 Stainless Steel
Grade	A2
Standard	DIN6798A / GB862.2
Type	External toothed serrated lock washer
Size Range	M2.5, M3, M4, M5, M6, M8, M10, M12, M16, M20, M24
Tooth Location	External (outer edge)

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Why Choose External Toothed Lock Washers?

• External teeth — larger contact area than internal teeth; better grip on soft materials and large bolt heads
• Superior anti-loosening — teeth bite into both bolt head and workpiece surface
• A2 304 SS — corrosion-resistant for electronics, outdoor, and humid environments
• DIN6798A standard — interchangeable with GB862.2
• M2.5–M24 range — covers all standard electronics and mechanical assembly sizes

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Typical Applications

• Electronics enclosure panel fastening
• Motor and gearbox mounting under vibration
• Automotive and industrial equipment fastening
• 3D printer and CNC machine frame assembly
• General mechanical assembly requiring anti-loosening

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Package Contents

• GB862.2 DIN6798A A2 304 SS external serrated lock washers (quantity and size per selected variant)

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