S-94744A521 0.344" ID x 0.875" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating that protects against rust and extends service life in harsh environments
• Enhanced load distribution thanks to precise 0.875" OD and 0.344" ID dimensions that prevent surface damage and loosening
• Reliable performance under stress with Grade 5 strength classification ensuring durability in demanding applications
• Consistent thickness control (0.056-0.071") for uniform clamping force and vibration resistance
• Industry-standard compliance with ASME B18.21.1 specifications guaranteeing dimensional accuracy and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance, safe for regulated industrial use
• Optimized for 5/16" fasteners providing secure fit and reduced installation time in assembly operations

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver critical engineering solutions where corrosion protection and load distribution are paramount. The Grade 5 material strength prevents deformation under high bolt tension, while the zinc coating creates a sacrificial barrier against moisture and chemicals in outdoor equipment, automotive assemblies, and structural frameworks. Precision-machined to ASME B18.21.1 standards, these washers maintain consistent 0.344" ID and 0.875" OD dimensions to eliminate play and distribute clamping force evenly across joint surfaces. This combination of corrosion resistance and mechanical reliability makes them ideal for industrial fastening systems requiring long-term stability with minimal maintenance.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional standards with inch system measurements: Internal Diameter 0.344", Outer Diameter 0.875", and Thickness 0.056-0.071". The Grade 5 steel construction provides consistent mechanical properties without hardness rating requirements. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety for global industrial supply chains.