S-98099A032 0.469" ID x 1" OD Oversized Washers

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance: Black-oxide steel surface treatment provides superior protection against rust and environmental degradation, extending service life in humid or demanding industrial settings.
• Precise Fit & Load Distribution: Accurate 0.469" ID ensures snug fit on 7/16" fasteners, while the 1" OD effectively distributes pressure to prevent surface damage and joint loosening.
• Robust Construction: Made from durable steel with a thickness range of 0.168-0.193", offering reliable performance under mechanical stress without deformation.
• Regulatory Compliance: Fully compliant with RoHS 3 and REACH standards, ensuring safe use in regulated industries and global market acceptance.
• Versatile Application Range: Suitable for various industrial assemblies, from machinery to structural components, due to its standardized inch dimensions and material strength.
• Cost-Effective Maintenance: The corrosion-resistant black-oxide finish reduces the need for frequent replacements, lowering long-term operational costs.

Professional Applications & Engineering Value

These black-oxide steel flat washers are engineered to address common industrial challenges such as fastener corrosion, uneven load distribution, and regulatory non-compliance. The black-oxide coating significantly enhances corrosion resistance, making them ideal for applications exposed to moisture, chemicals, or outdoor environments—like automotive assemblies, construction frameworks, and heavy machinery. Their precise 0.469" ID and 1" OD ensure optimal alignment with 7/16" screws, preventing misalignment and reducing stress concentrations that can lead to joint failure. By incorporating RoHS 3 and REACH compliance, these washers meet stringent environmental and safety standards, providing peace of mind for OEMs and manufacturers in regulated sectors. This combination of material durability, dimensional accuracy, and compliance makes them a reliable choice for enhancing assembly integrity and longevity in demanding engineering projects.

Specification Summary & Compliance

This flat washer adheres to standard inch measurement specifications, with an inner diameter of 0.469", outer diameter of 1", and thickness ranging from 0.168" to 0.193". It is designed for use with 7/16" screws and is manufactured from black-oxide steel for consistent performance. The product is confirmed to be RoHS 3 (2015/863/EU) compliant under exemption 6(a) for lead as an alloying element in steel, and REACH (EC 1907/2006) compliant as of January 17, 2023, with no SVHC exceeding thresholds, ensuring it meets international environmental and safety regulations.