S-91717A198 0.281" ID x 0.75" OD Clipped Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel finish for extended service life in harsh industrial environments
• Optimized load distribution through precise 0.75" OD design that prevents surface damage and maintains joint integrity
• Secure anti-rotation performance with unique clipped design (0.63" width) that prevents washer movement during vibration
• Enhanced durability with Rockwell B40 hardness rating ensuring consistent performance under repeated stress
• Precision fit for 1/4" screws with 0.281" ID providing reliable alignment and reduced installation time
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
• Versatile thickness range (0.056-0.071") accommodating various compression requirements and surface irregularities

Professional Applications & Engineering Value

These black-oxide steel clipped washers deliver exceptional engineering value by solving critical fastening challenges in demanding applications. The black-oxide surface treatment provides superior corrosion resistance, making them ideal for automotive assemblies, outdoor equipment, and manufacturing machinery exposed to moisture and chemicals. The unique clipped design ensures positive locking against rotation, eliminating the need for additional locking mechanisms in vibrating environments. With precise 0.281" ID matching standard 1/4" screws, these washers maintain perfect alignment during assembly while the controlled 0.056-0.071" thickness compensates for surface variations. The Rockwell B40 hardness guarantees consistent performance under heavy loads, making these industrial washers essential components for machinery, structural frameworks, and heavy equipment where reliability is paramount.

Specification Summary & Compliance

Manufactured to exacting inch system standards with precise internal diameter (0.281"), outer diameter (0.75"), and thickness range (0.056-0.071"). Features specialized clipped width of 0.63" for secure fastening applications. The black-oxide steel construction meets industry hardness standards at Rockwell B40. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and global market acceptance for industrial applications.