S-98970A200 1.062" ID x 3.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from hot-dipped galvanized steel coating, ensuring long-term reliability in harsh industrial environments.
• Optimal load distribution with a large 3.25" outer diameter, minimizing surface pressure and preventing material damage.
• Precise fit for 1" screws with 1.062" inner diameter, enabling secure fastening and reducing assembly time.
• Enhanced durability from Rockwell B40 hardness, providing consistent performance under mechanical stress.
• Uniform thickness (0.235-0.265") ensures even pressure application and reliable sealing in heavy-duty applications.
• Compliance with RoHS 3 and REACH regulations guarantees safe, environmentally responsible use in global markets.
• Heavy-duty construction supports demanding applications where standard washers may fail.

Professional Applications & Engineering Value

This hot-dipped galvanized steel flat washer is engineered to address common industrial fastening challenges, such as corrosion-induced failure and uneven load distribution. The zinc coating provides a robust barrier against moisture and chemicals, extending service life in outdoor construction, machinery assembly, and marine applications. With its 1.062" ID precisely matching 1" screw sizes, it eliminates play and vibration loosening, while the 3.25" OD disperses force effectively across surfaces—preventing embedment in soft materials. Ideal for structural bolting, equipment mounts, and infrastructure projects, this washer combines Rockwell B40 hardness with standardized inch dimensions to deliver consistent performance in high-stress environments, reducing maintenance costs and downtime.

Specification Summary & Compliance

This flat washer adheres to inch system standards with an inner diameter of 1.062", outer diameter of 3.25", and thickness range of 0.235–0.265". Manufactured from hot-dipped galvanized steel, it meets Rockwell B40 hardness requirements for mechanical strength. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel alloys and REACH (EC 1907/2006) regulations, ensuring suitability for industrial and export applications.