S-98472A113 10.5 mm ID x 30 mm OD Finishing Washers

Key Features & Benefits at a Glance

• Flush surface installation with 90° countersink angle eliminates protrusions for smoother assemblies and improved safety
• Superior corrosion resistance from 18-8 stainless steel construction ensures long-term reliability in harsh environments
• Precise M10 screw compatibility with 10.5mm ID prevents loosening and maintains secure fastening under vibration
• Optimal load distribution through 30mm OD design reduces surface pressure and prevents material damage
• Industrial compliance assurance with RoHS 3 and REACH standards guarantees environmental and safety regulations adherence
• Metric system standardization ensures seamless integration with international fastener systems and equipment
• Durable 6.5mm profile provides consistent performance without adding excessive bulk to assemblies

Professional Applications & Engineering Value

This M10 countersunk washer delivers critical engineering solutions where flush mounting is essential for both aesthetic and functional requirements. The 90° countersink angle perfectly matches standard flat head screws, creating seamless surfaces in machinery, automotive, and architectural applications. Manufactured from 18-8 stainless steel, it provides exceptional resistance to rust and chemical corrosion, making it ideal for outdoor equipment, marine environments, and food processing facilities where moisture exposure is common. The precise 10.5mm inner diameter ensures perfect alignment with M10 fasteners, preventing thread damage and maintaining clamping force in high-vibration industrial settings. As a metric flat washer, it integrates seamlessly with European and international engineering specifications, while the generous 30mm outer diameter effectively distributes load across softer materials like aluminum and composites.

Specification Summary & Compliance

This countersunk flat washer features metric dimensions with 10.5mm ID, 30mm OD, and 6.5mm overall height, engineered for M10 screw applications. The 90° countersink angle conforms to standard flat head screw specifications. Manufactured from 18-8 stainless steel for consistent performance, the washer complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors without hazardous substance restrictions.