S-91114A004 0.102" ID x 0.235" OD ASME B18.21.1 External-Tooth Lock Washers
External-Tooth 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 with external teeth that bite into mating surfaces to prevent loosening under dynamic loads
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in various environments
- Consistent locking performance maintained by Rockwell C40 hardness for reliable fastener retention
- Precision dimensional control with 0.102" ID and 0.235" OD ensuring proper fit for No. 3 screw applications
- Industry-standard compliance with ASME B18.21.1 specifications for guaranteed quality and interchangeability
- Environmental regulation adherence through RoHS 3 and REACH compliance for safe use in regulated industries
- Optimized thickness range (0.010-0.016") providing flexibility while maintaining effective spring tension
Professional Applications & Engineering Value
This external tooth lock washer delivers critical vibration-resistant performance in demanding industrial applications where fastener security is paramount. The zinc-plated steel construction provides essential corrosion resistance while the precisely positioned external teeth create maximum biting action into both the fastener and workpiece surfaces. Engineered to ASME B18.21.1 standards, this No. 3 size washer solves common loosening problems in machinery, electrical enclosures, and automotive assemblies where thermal cycling and mechanical vibrations compromise joint integrity. The combination of Rockwell C40 hardness and controlled thickness ensures consistent spring tension that maintains clamping force through repeated load cycles, making it ideal for maintenance-critical applications across multiple industries.
Specification Summary & Compliance
This external tooth lock washer features precision dimensions (0.102" ID, 0.235" OD) with thickness ranging 0.010-0.016" for No. 3 screw applications. Manufactured to ASME B18.21.1 specifications with Rockwell C40 hardness ensuring proper spring characteristics. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental standards for industrial use.
