S-92844A137 0.344" ID x 0.625" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• Precise dimensional fit for 5/16" screws ensures reliable load distribution and prevents fastener loosening
• Enhanced durability for long-term performance in demanding mechanical and industrial applications
• Industry-standard compliance with ASME B18.21.1 guarantees consistent quality and interchangeability
• Environmental responsibility with full RoHS 3 and REACH compliance for safe, regulated use
• Optimized thickness range (0.056-0.071") provides ideal compression and surface protection
• Broad industrial compatibility with inch-system fasteners for versatile installation scenarios

Professional Applications & Engineering Value

These 316 stainless steel flat washers deliver exceptional value in corrosive or high-moisture environments where ordinary washers fail. The molybdenum-enhanced 316 alloy provides superior pitting and crevice corrosion resistance compared to standard 304 stainless, making them ideal for chemical processing, marine equipment, and food industry applications. Their precise inch dimensions (ID: 0.344", OD: 0.625") ensure perfect compatibility with 5/16" fasteners, preventing stress concentration and maintaining joint integrity. The ASME B18.21.1 compliance guarantees dimensional consistency across batches, while the controlled thickness range allows for optimal clamping force distribution without compromising the seated surface.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 standards with inch-system dimensions: ID 0.344", OD 0.625", thickness 0.056-0.071" for 5/16" screw size. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates. The 316 stainless steel construction ensures consistent performance without hardness rating requirements for general industrial use.