S-91169A160 4.5 mm ID x 7.6 mm OD DIN 127B Split Lock Washers
Split Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance prevents fastener loosening in high-stress industrial environments
- Hardened steel construction with Rockwell C44 hardness ensures exceptional durability and spring action
- Precision metric dimensions (4.5mm ID, 7.6mm OD) provide perfect fit for M4 screw applications
- DIN 127B compliance guarantees consistent quality and reliable locking performance
- Environmental compliance with RoHS 3 and REACH standards for safe use in regulated industries
- Optimized thickness range (0.8-1.0mm) delivers maximum locking force while maintaining flexibility
- Standard split lock design offers easy installation and reliable performance across various applications
Professional Applications & Engineering Value
This M4 DIN 127B split lock washer addresses critical vibration-related failures in industrial assemblies. The Rockwell C44 hardened steel construction provides exceptional spring tension that maintains constant pressure on fastened joints, effectively preventing loosening under dynamic loads. The split lock washer design creates a reliable locking mechanism that compensates for thermal expansion and vibration in machinery, automotive, and electrical equipment applications. Engineered to DIN 127B standards, this metric washer ensures precise dimensional accuracy and consistent performance in demanding environments where vibration resistance is paramount for operational safety and equipment longevity.
Specification Summary & Compliance
This split lock washer features precise metric dimensions with 4.5mm internal diameter and 7.6mm external diameter, specifically designed for M4 screw applications. Manufactured to DIN 127B specifications with Rockwell C44 hardness rating, ensuring dimensional accuracy and reliable spring performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental and safety standards for industrial use across global markets.
