S-90375A011 0.195" ID x 0.41" OD ASME B18.21.1 External-Tooth Lock Washers
External-Tooth Lock Washers
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior vibration resistance with external teeth that bite into mating surfaces, preventing loosening under dynamic loads.
- Excellent corrosion resistance provided by 316 Stainless Steel, ideal for harsh or marine environments.
- Reliable locking performance for No. 10 screws, ensuring secure and long-lasting fastening assemblies.
- Manufactured to ASME B18.21.1 standard, guaranteeing dimensional consistency and interchangeability.
- Compliant with RoHS 3 and REACH regulations, making them safe for use in regulated industries and environmentally conscious applications.
- Precise dimensional fit with a 0.195" ID and 0.41" OD, designed for accurate installation on standard No. 10 screws.
- Durable construction with a thickness of 0.018-0.024", providing structural integrity without adding excessive bulk.
Professional Applications & Engineering Value
This 316 Stainless Steel External Tooth Lock Washer is engineered to solve critical fastening challenges in demanding industrial settings. The external tooth design provides a powerful mechanical lock that counters vibration-induced loosening, a common failure point in machinery, automotive, and electrical assemblies. Made from 316 stainless steel, it offers exceptional resistance to corrosion from chemicals, saltwater, and atmospheric exposure, making it a top choice for marine, chemical processing, and outdoor infrastructure. Its compliance with the ASME B18.21.1 standard ensures reliable performance and easy integration into existing designs requiring No. 10 screw fasteners, providing engineers with a trusted component for maintaining assembly integrity under stress.
Specification Summary & Compliance
This washer conforms to the dimensional and mechanical requirements of ASME B18.21.1. Key specifications include an Inside Diameter (ID) of 0.195", Outside Diameter (OD) of 0.41", and a Thickness range of 0.018-0.024", designed for use with No. 10 screw size in inch measurement systems. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.
