S-5185N116 0.574" ID x 0.965" OD ASME B18.21.1 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 prevents loosening under dynamic loads, ensuring long-term joint integrity
- Black-oxide steel construction provides excellent corrosion resistance for extended service life in harsh environments
- Rockwell C38 hardness rating delivers exceptional durability and maintains spring tension under repeated stress
- Precision 0.574" inner diameter ensures perfect fit and optimal locking performance for 9/16" screws
- ASME B18.21.1 compliance guarantees consistent quality and dimensional accuracy for reliable industrial applications
- RoHS 3 and REACH compliance meets international environmental standards for safe global procurement
- Standard split lock design offers immediate spring action and easy installation without special tools
Professional Applications & Engineering Value
This black-oxide steel split lock washer addresses critical vibration-induced loosening challenges in heavy machinery, automotive assemblies, and structural frameworks. The split lock washer type creates continuous spring tension that compensates for thermal expansion and dynamic loading, maintaining bolt preload where conventional fasteners fail. Engineered to ASME B18.21.1 standards, it provides reliable performance in high-vibration environments like engine mounts, conveyor systems, and industrial equipment. The black-oxide surface treatment enhances corrosion resistance while maintaining dimensional stability, making it ideal for outdoor applications and harsh manufacturing conditions where 9/16" screw applications demand uncompromising locking security.
Specification Summary & Compliance
Manufactured to exacting ASME B18.21.1 specifications with precise dimensions: 0.574" ID, 0.965" OD, and 0.141" thickness. The standard split lock washer features Rockwell C38 hardness for optimal spring performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. Designed specifically for 9/16" screw size applications within the inch measurement system.
