S-93837A310 4.1 mm ID x 7 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
Special Type Parameters
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Key Features & Benefits at a Glance
- Exceptional vibration resistance due to the split lock design that maintains constant tension under dynamic loads
- Superior corrosion protection with zinc yellow-chromate plating that extends service life in harsh industrial environments
- Reliable hardness performance with Rockwell C44 rating ensuring consistent spring action and fatigue resistance
- Precise dimensional accuracy with 4.1mm ID and 7mm OD for perfect fit with M4 fasteners in metric assemblies
- Standardized compatibility meeting DIN 7980 specifications for guaranteed interchangeability and quality
- Optimized thickness range (1.1-1.3mm) providing ideal deflection characteristics for secure locking performance
- Durable steel construction offering excellent strength-to-weight ratio for demanding mechanical applications
Professional Applications & Engineering Value
These M4 split lock washers deliver critical vibration resistance in industrial machinery, automotive assemblies, and electrical equipment where loosening prevention is paramount. The zinc yellow-chromate plated steel construction provides dual protection against corrosion and wear, while the Rockwell C44 hardness ensures the spring tension remains effective through repeated stress cycles. Engineered to DIN 7980 standards, these metric lock washers solve common fastening failures in high-vibration environments by maintaining constant axial pressure that counters rotational loosening. The precise 4.1mm ID ensures perfect M4 screw compatibility without compromising the fastener thread integrity, making them ideal for precision assemblies requiring reliable, long-term secure fastening solutions.
Specification Summary & Compliance
Manufactured to DIN 7980 specifications with precise dimensional tolerances including 4.1mm inner diameter and 7mm outer diameter. Features standard split lock washer configuration with thickness range of 1.1-1.3mm and Rockwell C44 hardness rating. Constructed from zinc yellow-chromate plated steel for corrosion resistance. Complies with relevant industry standards for metric fasteners and meets RoHS and REACH environmental requirements.
