S-98970A150 0.812" ID x 3" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from hot-dipped galvanized steel coating, extending service life in harsh industrial environments
• Optimized load distribution with 3" outer diameter providing excellent surface coverage for 3/4" screw applications
• Precise dimensional fit with 0.812" inner diameter ensuring proper alignment and secure fastening
• Enhanced durability with Rockwell B40 hardness maintaining structural integrity under heavy loads
• Consistent performance through controlled thickness range of 0.235-0.265" for reliable compression characteristics
• Regulatory compliance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Heavy-duty construction designed to withstand extreme conditions while preventing surface damage to connected materials

Professional Applications & Engineering Value

This hot-dipped galvanized steel flat washer delivers exceptional engineering value in demanding industrial settings where corrosion protection and load distribution are critical. The heavy-duty construction with precise 0.812" ID and 3" OD dimensions ensures optimal performance for 3/4" screw applications in structural steelwork, machinery assembly, and outdoor infrastructure. The galvanized coating provides superior barrier protection against moisture, chemicals, and environmental exposure, significantly reducing maintenance frequency in applications like bridge construction, marine equipment, and industrial processing facilities. With controlled thickness and Rockwell B40 hardness, this industrial-grade washer maintains consistent compression and prevents surface deformation under sustained loads, making it ideal for permanent installations requiring long-term reliability.

Specification Summary & Compliance

Manufactured to inch system standards with precise dimensional tolerances: 0.812" inner diameter, 3" outer diameter, and thickness range of 0.235-0.265". The hot-dipped galvanized steel construction provides Rockwell B40 hardness for consistent performance. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) regulations updated January 17, 2023, covering 233 SVHC substances. Designed specifically for 3/4" screw size applications in industrial and construction environments requiring corrosion-resistant fastening solutions.