S-99041A150 0.562" ID Square Washers

Key Features & Benefits at a Glance

• Enhanced Load Distribution: Square design with 2" width provides superior surface contact, reducing stress and preventing surface damage in heavy-duty applications.
• Superior Corrosion Resistance: Zinc-plated steel construction offers reliable protection against rust and environmental degradation, extending service life.
• Precision Fit for 1/2" Screws: 0.562" inner diameter ensures accurate alignment and secure fastening, minimizing installation errors and improving assembly efficiency.
• Consistent Mechanical Strength: Rockwell B40 hardness guarantees dependable performance under vibration and load, reducing the risk of deformation or failure.
• Regulatory Compliance Assurance: Meets RoHS 3 and REACH standards, ensuring safe use in regulated industries and global market acceptance.
• Durable Material Integrity: Steel base with zinc plating maintains structural stability, offering long-term reliability in demanding industrial environments.
• Standardized Inch Sizing: Compatible with common imperial fastener systems, simplifying inventory management and replacement processes.

Professional Applications & Engineering Value

This zinc-plated steel square washer is engineered to address critical challenges in industrial assembly, such as uneven load distribution and corrosion-induced failures. The 2" width and square geometry maximize bearing surface area, effectively dispersing pressure from 1/2" screw fastenings in machinery, structural frameworks, and heavy equipment. The zinc plating provides a robust barrier against moisture and chemicals, preventing rust that can compromise joint integrity over time. With a Rockwell B40 hardness, it resists wear in high-vibration settings, ensuring maintained clamp load in automotive, construction, and manufacturing applications. Its precise 0.562" ID facilitates quick installation, reducing labor costs and enhancing productivity in industrial washer systems requiring reliable, compliant components.

Specification Summary & Compliance

This square washer features an inner diameter of 0.562" and thickness range of 0.105-0.135", designed for use with 1/2" screws in inch-based systems. Manufactured from zinc-plated steel with a Rockwell B40 hardness rating, it ensures consistent dimensional accuracy and mechanical performance. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates, confirming adherence to environmental and safety standards for industrial applications.