S-91202A111 7.5 mm ID x 12.8 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 due to the split lock design and Rockwell C44 hardness, preventing loosening under dynamic loads
- Enhanced corrosion protection with zinc-plated steel construction, extending service life in harsh industrial environments
- Precise fit for M7 screws with 7.5mm inner diameter, ensuring secure fastening and reducing assembly errors
- Reliable spring action from the standard split lock type, maintaining consistent tension and clamp load
- Compliance with DIN 127B standards guarantees dimensional accuracy and interchangeability in metric applications
- Environmental regulatory adherence through RoHS 3 and REACH compliance, meeting global supply chain requirements
- Optimized thickness (1.5-1.7mm) provides balanced flexibility and strength for repeated use without deformation
Professional Applications & Engineering Value
This M7 split lock washer is engineered to address critical challenges in industrial fastening, such as vibration-induced loosening and corrosion in demanding settings. Manufactured from zinc-plated steel, it offers a durable barrier against moisture and chemicals, making it ideal for automotive assemblies, machinery, and outdoor equipment. The split lock design generates continuous spring force that compensates for thermal expansion and dynamic stresses, ensuring joint integrity over time. By conforming to DIN 127B specifications, it delivers precise metric compatibility, reducing downtime and maintenance costs in industrial applications where reliability is paramount.
Specification Summary & Compliance
This washer features an ID of 7.5mm, OD of 12.8mm, and thickness of 1.5-1.7mm, adhering to DIN 127B dimensional standards for consistent performance. It is manufactured from zinc-plated steel with a hardness of Rockwell C44, ensuring mechanical durability. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial use.
