S-91190A540 6.5 mm ID x 9.9 mm OD DIN 7980 Split Lock Washers for Socket Head Screws
Split Lock Washers for Socket Head Screws
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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 environments
- Black-oxide steel construction provides excellent corrosion protection and durability
- Rockwell C44 hardness rating ensures long-term performance under heavy loads
- Precision DIN 7980 compliance guarantees consistent quality and reliable fit for M6 screws
- Split lock design creates continuous spring tension to maintain clamping force
- RoHS 3 and REACH compliance meets strict environmental regulations for industrial applications
- Optimized dimensions (6.5mm ID/9.9mm OD) ensure perfect compatibility with metric fastening systems
Professional Applications & Engineering Value
These M6 metric split lock washers deliver critical vibration-dampening performance in demanding industrial settings where fastener security is paramount. The black-oxide steel material provides superior corrosion resistance while maintaining the necessary spring properties for effective locking action. Engineered to DIN 7980 standards, these washers solve the common problem of joint loosening in machinery, automotive assemblies, and heavy equipment subjected to constant vibration and dynamic loads. The split lock design creates continuous radial pressure against both the bolt and mating surface, ensuring maintained preload and preventing costly downtime from fastener failure in industrial applications where reliability cannot be compromised.
Specification Summary & Compliance
This standard split lock washer features precise dimensions of 6.5mm inner diameter and 9.9mm outer diameter with 1.5-1.7mm thickness, specifically designed for M6 screw applications. Manufactured to DIN 7980 specifications with Rockwell C44 hardness, ensuring dimensional accuracy and mechanical performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making them suitable for global industrial supply chains and regulated industries.
