S-90452A123 Washers for Square-Neck Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise square hole design ensures secure fit and prevents rotation with 7/16" screws
• Heavy-duty durability from 0.937" OD and 0.055-0.065" thickness for reliable load distribution
• Wide compatibility with inch-system fasteners, simplifying procurement for standard applications
• Environmental compliance with RoHS 3 and REACH regulations, ensuring safe industrial use
• Excellent mechanical performance in demanding conditions without hardness limitations

Professional Applications & Engineering Value

This square hole washer in 18-8 stainless steel addresses critical engineering challenges in industrial assembly. The square hole design provides anti-rotation security for 7/16" screws, preventing loosening under vibration in machinery, construction, and automotive applications. With its 0.937" OD and precise 0.517" inside width, it delivers optimal surface coverage and stress distribution while the stainless steel material offers exceptional corrosion resistance in humid or chemical environments. These industrial washers maintain integrity in heavy-duty applications where standard washers might fail, making them essential for precision mechanical systems requiring reliable fastening solutions.

Specification Summary & Compliance

Manufactured to inch system standards with 0.937" OD, 0.055-0.065" thickness, and 0.517" inside width for 7/16" screw compatibility. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications.