S-94744A228 0.188" ID x 0.625" OD ASME B18.21.1 ASME Washers
ASME Washers
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance through zinc plating, extending service life in humid or outdoor environments
- Precise dimensional fit with 0.188" ID and 0.625" OD ensuring perfect alignment with No. 8 screws
- Enhanced load distribution with controlled 0.056-0.071" thickness to prevent surface damage and loosening
- Consistent mechanical performance guaranteed by Rockwell B40 hardness for reliable operation under vibration
- Industry-standard compliance with ASME B18.21.1 specifications for interchangeability and quality assurance
- Environmental responsibility through RoHS 3 and REACH compliance, meeting global regulatory requirements
- Robust steel construction providing excellent strength-to-weight ratio for heavy-duty applications
Professional Applications & Engineering Value
These zinc-plated steel flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision are paramount. The Rockwell B40 hardness ensures consistent performance in high-vibration environments like machinery assembly, automotive systems, and electrical enclosures using No. 8 screws. The zinc plating creates a sacrificial barrier against oxidation, significantly extending component life in industrial settings exposed to moisture or chemicals. Manufactured to ASME B18.21.1 standards, these washers provide reliable load distribution, preventing fastener loosening and surface damage in heavy-duty applications while maintaining precise 0.188" ID and 0.625" OD tolerances for perfect fitment.
Specification Summary & Compliance
This flat washer maintains precise dimensional tolerances per ASME B18.21.1 standards with internal diameter of 0.188", outer diameter of 0.625", and thickness range of 0.056-0.071". The zinc-plated steel construction provides Rockwell B40 hardness for consistent mechanical properties. Compliance includes RoHS 3 (2015/863/EU) with exemption 6(a) for lead as alloying element in steel and full REACH (EC 1907/2006) adherence for hazardous substances management.
