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DIN127 GB93 Black Grade 8.8 Steel Spring Split Lock Washer Elastic Gasket M2–M24
DIN127 GB93 Black Grade 8.8 Steel Spring Split Lock Washer Elastic Gasket M2–M24
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DIN127 GB93 Black Grade 8.8 Steel Spring Split Lock Washer Elastic Gasket M2–M24
Grade 8.8 steel spring split lock washers to DIN127 / GB93 standard with black oxide finish. Higher spring force than standard grade lock washers, providing stronger anti-loosening resistance under vibration and dynamic loads. Black oxide finish gives a professional appearance for visible fastener assemblies. Covers M2 to M24 for all standard metric applications.
Key Specifications
| Material | Carbon Steel |
|---|---|
| Grade | 8.8 (high strength) |
| Finish | Black oxide |
| Standard | DIN127 / GB93 |
| Type | Spring split lock washer (helical) |
| Size Range | M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24 |
Why Choose Grade 8.8 Black Lock Washers?
- Grade 8.8 high strength — higher spring force than standard grade; stronger anti-loosening resistance
- Black oxide finish — professional appearance for visible fastener assemblies; light corrosion resistance
- DIN127 standard — interchangeable with GB93 and ISO 7980
- M2–M24 range — covers all standard metric sizes from electronics to heavy structural assembly
- Cost-effective — carbon steel provides high strength at lower cost than stainless steel
Typical Applications
- Motor and gearbox mounting in machinery
- Structural steel assembly requiring vibration resistance
- Automotive and industrial equipment fastening
- 3D printer and CNC machine frame assembly
- Electronics enclosure panel fastening (black finish for aesthetics)
- General mechanical assembly in dry indoor environments
FAQ
Q: What is the difference between grade 8.8 and standard spring lock washers?
A: Grade 8.8 lock washers have higher tensile strength and spring force than standard (grade 4.8) lock washers. They provide stronger anti-loosening resistance and are recommended for use with grade 8.8 or higher bolts.
Q: Is black oxide corrosion-resistant?
A: Black oxide provides light corrosion resistance suitable for dry indoor environments. For outdoor or humid applications, use A2-70 304 stainless steel lock washers instead.
Package Contents
- DIN127 black grade 8.8 steel spring split lock washers (quantity and size per selected variant)
