S-99041A119 0.812" ID Square Washers

Key Features & Benefits at a Glance

• Enhanced Load Distribution: Square 2" width design spreads pressure evenly, preventing surface damage and extending joint life in heavy-duty applications.
• Superior Corrosion Resistance: Zinc-plated steel construction provides reliable protection against rust and environmental degradation in harsh industrial settings.
• Precision Fit for 3/4" Screws: 0.812" inner diameter ensures accurate alignment and secure fastening, reducing installation errors and improving assembly efficiency.
• Durable Material Strength: Rockwell B40 hardness offers excellent mechanical durability, maintaining integrity under high stress and repeated use.
• Compliance with Global Standards: Meets RoHS 3 and REACH regulations, ensuring safe, eco-friendly use in international industrial supply chains.
• Optimized Thickness Range: 0.112-0.128" thickness balances strength and flexibility, accommodating slight variations while maintaining consistent performance.
• Broad Industrial Compatibility: Inch system sizing makes it ideal for North American machinery, construction, and equipment requiring standardized fastener components.

Professional Applications & Engineering Value

Engineered for demanding environments, these zinc-plated steel square washers address critical challenges in industrial assembly, such as uneven load distribution and corrosion-induced failure. The square shape maximizes surface contact, effectively reducing point stress on soft materials like wood or composite structures, while the 0.812" ID ensures a precise match with 3/4" screws, minimizing loosening from vibration. The zinc plating adds a protective barrier against moisture and chemicals, crucial for outdoor machinery, automotive frames, and structural steelwork. With Rockwell B40 hardness, they withstand high torque and mechanical wear, making them reliable in construction, heavy equipment manufacturing, and infrastructure projects where durability and regulatory compliance are paramount.

Specification Summary & Compliance

This washer features an inner diameter of 0.812", thickness range of 0.112-0.128", and width of 2", designed for use with 3/4" screws in inch-based systems. Manufactured from zinc-plated steel with a hardness of Rockwell B40, it adheres to standard dimensional tolerances for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel alloys and REACH (EC 1907/2006) as of January 17, 2023, covering 233 SVHCs, ensuring it meets rigorous environmental and safety requirements for industrial use.