S-90481A256 1.062" ID x 4" OD Oversized Washers

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc plating, extending service life in harsh industrial environments
• Optimal load distribution due to 4" outer diameter, reducing stress on fastened materials
• Secure fit for 1" screws with precise 1.062" inner diameter, preventing loosening under vibration
• Robust zinc-plated steel construction providing reliable strength for heavy-duty applications
• Improved vibration resistance maintaining joint integrity in dynamic operating conditions
• Compliance with environmental regulations including RoHS 3 and REACH for global industrial use
• Durable thickness range (0.108-0.160") ensuring consistent performance under compression loads

Professional Applications & Engineering Value

This zinc-plated steel flat washer addresses critical engineering challenges in industrial assembly where corrosion resistance and load distribution are paramount. The 4" OD provides exceptional surface coverage, effectively distributing clamping forces across wider areas to prevent material deformation and joint failure. Engineered for 1" screw size applications, the precise 1.062" ID ensures proper alignment while the zinc plating creates a protective barrier against moisture, chemicals, and environmental exposure. These industrial washers are particularly valuable in construction, heavy machinery, and structural applications where vibration resistance and long-term reliability are essential for operational safety and reduced maintenance costs.

Specification Summary & Compliance

Manufactured to inch system measurements with 1.062" inner diameter and 4" outer diameter. Constructed from zinc-plated steel with thickness ranging 0.108-0.160". Designed specifically for 1" screw size applications. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance for industrial components.