S-90073A231 0.385" ID x 0.55" OD ASME B18.21.1 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 loosening under dynamic loads, ensuring long-term joint integrity.
- High-strength steel construction with Rockwell C38 hardness provides excellent durability and resistance to deformation.
- Precise 0.385" ID and 0.55" OD dimensions ensure a perfect fit for 3/8" screws, facilitating quick and accurate installation.
- ASME B18.21.1 standard compliance guarantees consistent quality, interchangeability, and reliability in industrial applications.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.
- 0.125" thickness offers optimal spring action for maintaining clamp load without adding excessive bulk.
- Standard split lock design delivers proven, cost-effective locking performance for a wide range of machinery and equipment.
Professional Applications & Engineering Value
This Split Lock Washer is engineered to solve critical challenges in industrial applications where vibration-induced loosening can lead to equipment failure or safety hazards. Made from high-carbon steel and heat-treated to a Rockwell C38 hardness, it maintains its spring force under heavy loads and repeated stress cycles. The split lock design creates a continuous upward force that counters rotational loosening, making it ideal for 3/8" screw assemblies in automotive, machinery, and structural frameworks. Its compliance with ASME B18.21.1 ensures dimensional accuracy and performance consistency, reducing maintenance downtime and enhancing operational reliability in demanding environments.
Specification Summary & Compliance
This washer features precise dimensions: 0.385" ID, 0.55" OD, and 0.125" Thickness, designed for 3/8" screw size applications. It conforms to ASME B18.21.1 standards for split lock washers, ensuring proper thread engagement and functional reliability. The product is manufactured from steel with a hardness of Rockwell C38 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.
