S-94744A509 0.656" ID x 1.75" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Grade 8 classification, ensuring dependable performance under high-stress conditions.
• Superior corrosion resistance provided by zinc plating, extending service life in harsh or outdoor environments.
• Precise dimensional fit with 0.656" ID and 1.75" OD, designed specifically for 5/8" screws to prevent loosening and distribute load evenly.
• Enhanced durability and wear resistance due to Rockwell C38 hardness, maintaining integrity in demanding applications.
• Guaranteed compliance with industry standards including ASME B18.21.1, ensuring consistent quality and interchangeability.
• Environmental and safety assurance through RoHS 3 and REACH compliance, making them safe for various industrial uses.
• Versatile and heavy-duty design suitable for construction, machinery, and automotive applications where reliability is critical.

Professional Applications & Engineering Value

This Grade 8 zinc-plated steel flat washer is engineered to address common industrial challenges such as joint failure, corrosion-induced degradation, and inconsistent load distribution. Its robust zinc-plated steel construction offers excellent protection against rust and wear, making it ideal for heavy-duty applications in construction, automotive assembly, and machinery. The precise 0.656" ID and 1.75" OD ensure a secure fit for 5/8" screws, preventing misalignment and reducing the risk of fastener loosening under vibration or dynamic loads. By adhering to ASME B18.21.1 standards, this washer delivers consistent performance, enhancing the longevity and safety of industrial fastening systems while meeting stringent regulatory requirements for environmental safety.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.656", outer diameter of 1.75", and thickness ranging from 0.090" to 0.112", designed for use with 5/8" screws. It meets the dimensional and mechanical requirements of ASME B18.21.1, ensuring precise fit and function. The washer is manufactured from zinc-plated steel with a hardness of Rockwell C38 and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, confirming its safety and environmental responsibility for industrial applications.