S-98038A114 2.407" ID x 4" OD ASTM F436 Type 1 Structural Washers

Key Features & Benefits at a Glance

• Superior load distribution with 4" OD and 2.407" ID for even pressure spread and reduced surface damage
• Enhanced durability from Rockwell C38 hardness, resisting deformation under heavy loads
• Reliable performance with ASTM F436 Type 1 certification ensuring consistent quality and mechanical properties
• Corrosion resistance through steel material construction for long service life in harsh environments
• Precise compatibility with 2 1/4" screws, minimizing installation errors and improving assembly efficiency
• Environmental compliance with REACH regulations, safe for industrial use without hazardous substances
• Robust thickness range (0.240-0.340") to absorb vibrations and maintain joint integrity

Professional Applications & Engineering Value

This ASTM F436 Type 1 steel flat washer is engineered to address critical challenges in heavy machinery, construction, and structural assemblies. Its inch system dimensions (2.407" ID x 4" OD) provide optimal surface coverage, preventing bolt head embedment and distributing loads evenly to avoid material fatigue. The Rockwell C38 hardness ensures it withstands high-stress conditions without cracking or deforming, making it ideal for applications like bridge construction, industrial equipment, and automotive frameworks. By utilizing REACH compliant materials, it offers corrosion resistance and environmental safety, reducing maintenance costs and enhancing operational reliability in demanding settings where 2 1/4" screw compatibility is essential for secure fastening.

Specification Summary & Compliance

This washer meets ASTM F436 Type 1 standards for dimensional accuracy and mechanical properties, with precise inner diameter (2.407"), outer diameter (4"), and thickness range (0.240-0.340"). It is manufactured from steel in the inch system and complies with REACH (EC 1907/2006) regulations, ensuring no use of SVHCs above threshold limits as of June 14, 2023. Designed for use with 2 1/4" screws, it guarantees reliable performance in industrial applications requiring heavy-duty load distribution and corrosion resistance.