S-91151A031 0.438" ID Leveling Washers for I-Beams

Key Features & Benefits at a Glance

• Superior load distribution with tapered design that compensates for uneven surfaces and prevents joint loosening under vibration
• Exceptional durability provided by iron construction with Rockwell B62 hardness rating for long service life in demanding applications
• Precision fit with 0.438" inner diameter specifically engineered for 3/8" screw sizes to ensure secure fastening
• Optimal thickness variation from 0.156" to 0.344" allows for effective gap filling and angular correction in assemblies
• Heavy-duty construction with 1.25" width provides substantial bearing surface for improved load capacity
• Regulatory compliance with RoHS 3 and REACH standards ensures environmental safety and global market acceptance
• Inch system compatibility designed for seamless integration with existing industrial equipment and standards

Professional Applications & Engineering Value

This tapered washer delivers critical engineering solutions for industrial applications where surface irregularities and angular misalignments compromise fastener performance. Manufactured from iron material with Rockwell B62 hardness, it maintains structural integrity under substantial loads while resisting deformation. The precisely calculated taper from 0.344" to 0.156" thickness effectively bridges gaps in machinery bases, structural steel connections, and heavy equipment assemblies. The 1.25" width distributes clamping forces evenly, preventing surface damage and maintaining 3/8" screw tension in vibrating environments. This industrial washer solves common challenges in construction, manufacturing, and maintenance operations where leveling and proper load transfer are essential for equipment longevity and operational safety.

Specification Summary & Compliance

This tapered washer features inch system dimensions with 0.438" inner diameter precision-matched for 3/8" screw applications. The iron material achieves Rockwell B62 hardness for consistent performance. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. The tapered profile (0.344" to 0.156" thickness) and 1.25" width maintain dimensional accuracy for reliable performance in industrial fastening systems.