S-98148A120 Male and Female Leveling Washers

Key Features & Benefits at a Glance

• Superior misalignment compensation with ±3° angular correction capability for perfect component alignment in demanding applications
• Exceptional durability achieved through Rockwell C48 hardened steel construction that resists deformation under heavy loads
• Precision dimensional control with 4.3-4.9mm ID and 9.5mm OD ensuring consistent performance across M4 fastener systems
• Optimized load distribution through spherical design that minimizes stress concentrations and prevents joint failure
• Full regulatory compliance with RoHS 3 and REACH standards for safe use in global industrial markets
• Robust thickness range from 3.2mm to 3.8mm providing flexibility for various assembly clearance requirements
• Complete system solution with replacement male washers available for comprehensive alignment correction needs

Professional Applications & Engineering Value

These M4 spherical washers solve critical alignment challenges in industrial machinery, automotive assemblies, and precision equipment where angular misalignment can cause premature wear or joint failure. The steel construction with Rockwell C48 hardness maintains dimensional stability under vibration and heavy loading conditions, while the spherical surface design enables smooth angular adjustment without compromising clamping force. Engineered specifically for metric fastener systems, these alignment washers prevent galling and surface damage that commonly occurs with standard flat washers in misaligned applications. The 3° correction capability accommodates manufacturing tolerances and thermal expansion variations, making them essential for precision assembly operations requiring reliable, long-term performance.

Specification Summary & Compliance

This metric spherical washer set features precise dimensional specifications including Male ID: 4.3mm, Female ID: 4.9mm, consistent OD: 9.5mm, and thickness range: 3.2-3.8mm. Manufactured to exacting standards for M4 screw applications with 7mm male radius geometry optimized for angular correction. The washers meet RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance with current SVHC documentation, ensuring environmental regulatory adherence for industrial distribution and use. Hardness rating of Rockwell C48 provides consistent performance across temperature variations and loading conditions.