S-91102A029 0.26" ID x 0.487" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance due to the split lock design, preventing loosening in high-stress industrial applications
• Enhanced corrosion protection with zinc-plated steel construction, extending service life in harsh environments
• Reliable hardness performance at Rockwell C38, ensuring consistent spring action and load distribution
• Precise fit for 1/4" screws with 0.26" ID and 0.487" OD, minimizing installation errors and improving assembly efficiency
• Compliance with ASME B18.21.1 standards, guaranteeing dimensional accuracy and interchangeability for engineering projects
• Environmental and safety adherence through RoHS 3 and REACH compliance, supporting sustainable and safe manufacturing practices
• Durable material strength from zinc-plated steel, offering long-term reliability in mechanical fastening systems

Professional Applications & Engineering Value

This split lock washer is engineered to address common issues like bolt loosening under dynamic loads and vibration in industrial settings. Made from zinc-plated steel, it provides excellent resistance to corrosion, making it ideal for outdoor machinery, automotive assemblies, and heavy equipment where exposure to moisture is a concern. The standard split lock washer type with precise dimensions (0.26" ID, 0.487" OD) ensures a secure fit for 1/4" screw size applications, reducing maintenance downtime and enhancing safety. By meeting ASME B18.21.1 specifications, it delivers consistent performance in vibration-resistant scenarios, such as in conveyor systems, engine mounts, and structural frameworks, offering engineers a reliable solution for long-term fastening integrity.

Specification Summary & Compliance

This washer adheres to ASME B18.21.1 standards for dimensional accuracy, including an ID of 0.26", OD of 0.487", and thickness of 0.062", designed for 1/4" screw size with a standard split lock washer type. It features a hardness of Rockwell C38 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability in industrial use.