S-91190A670 31.7 mm ID x 44.1 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, ensuring long-term joint integrity.
- High-strength black steel construction with Rockwell C44 hardness provides excellent durability and resistance to wear and deformation.
- Precise DIN 7980 standard compliance guarantees dimensional accuracy and reliable interchangeability in metric assemblies.
- Optimized split lock design creates a powerful spring action that maintains constant tension under dynamic loads.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory acceptance for global industrial supply chains.
- Perfect fit for M30 screws with a 31.7mm ID and 44.1mm OD delivers secure fastening without slippage or misalignment.
Professional Applications & Engineering Value
This M30 metric split lock washer solves critical vibration-induced loosening problems in heavy machinery, automotive assemblies, and structural steel connections. Manufactured from black steel and hardened to Rockwell C44, it maintains its spring tension under extreme cyclic loading, preventing catastrophic joint failure. The split lock washer type design creates continuous radial pressure against both the bolt head and mating surface, making it ideal for industrial applications where thermal expansion, mechanical shocks, or persistent vibrations compromise standard fasteners. Compliance with DIN 7980 ensures precise dimensional control for reliable performance in metric-based engineering systems requiring certified components.
Specification Summary & Compliance
This washer meets DIN 7980 specifications with an internal diameter of 31.7mm, external diameter of 44.1mm, and thickness between 5.8-6.2mm. The standard split lock washer type is manufactured from black steel with Rockwell C44 hardness. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are fully met for industrial distribution.
