S-91190A660 43.7 mm ID x 60.2 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 applications
- Black-oxide steel construction provides excellent corrosion protection in industrial environments
- Precision M42 metric sizing (43.7mm ID/60.2mm OD) ensures perfect fit and consistent performance
- Rockwell C44 hardness rating delivers exceptional durability and spring tension retention
- DIN 7980 certification guarantees dimensional accuracy and manufacturing quality standards
- RoHS 3 & REACH compliance meets international environmental and safety regulations
- 7.7-8.3mm thickness range provides optimal compression and reliable locking action
Professional Applications & Engineering Value
This M42 split lock washer delivers critical vibration-resistant performance for demanding industrial applications where fastener security is paramount. The black-oxide steel construction offers superior corrosion resistance in harsh environments, while the DIN 7980 standard ensures precise dimensional tolerances for reliable installation. Engineered with Rockwell C44 hardness, this metric lock washer maintains its spring tension through repeated loading cycles, preventing loosening in heavy machinery, construction equipment, and automotive assemblies. The split design creates continuous upward force against the bolt head or nut, effectively countering rotational forces and vibration-induced failures in critical fastening systems.
Specification Summary & Compliance
This standard split lock washer features precise dimensional specifications (43.7mm ID, 60.2mm OD, 7.7-8.3mm thickness) manufactured to DIN 7980 standards for metric fasteners. The product maintains Rockwell C44 hardness throughout its construction and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across various industrial sectors while meeting international quality and safety requirements.
