S-90073A011 0.2" ID x 0.294" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress environments
• Rockwell C38 hardness ensures consistent spring action and long-term performance
• Precision 0.2" ID design provides secure fitment for No. 10 screws
• ASME B18.21.1 compliance guarantees dimensional accuracy and reliable performance
• Robust steel construction delivers maximum locking force and durability
• Full RoHS 3 & REACH compliance meets strict environmental regulations for industrial use
• Standard split lock design offers easy installation and reliable spring tension

Professional Applications & Engineering Value

These split lock washers provide critical vibration-resistant fastening solutions for industrial applications where mechanical stability is paramount. Engineered from premium steel with Rockwell C38 hardness, they maintain consistent spring tension under dynamic loads, preventing fastener loosening in machinery, equipment assemblies, and automotive components. The standard split lock design creates continuous upward force against the bolt or nut head, effectively resisting rotational forces and vibration-induced back-off. With precise 0.2" ID sizing for No. 10 screws, these washers ensure proper fitment while the ASME B18.21.1 certification guarantees dimensional consistency across production batches, making them ideal for maintenance, manufacturing, and assembly operations requiring reliable locking performance.

Specification Summary & Compliance

This split lock washer features precise dimensional specifications including 0.2" ID, 0.294" OD, and 0.047" thickness, manufactured to ASME B18.21.1 standards for dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility while meeting industrial quality requirements for inch system fastening applications.