S-95160A280 1.28" ID x 2.036" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress industrial environments
• Heavy-duty hot-dipped galvanized steel construction provides exceptional corrosion protection for extended service life
• Precision 1.28" ID design ensures perfect fit for 1 1/4" screw applications with reliable installation
• Rockwell C38 hardness rating delivers consistent spring tension and maintains locking force under load
• ASME B18.21.1 compliance guarantees dimensional accuracy and performance reliability
• RoHS 3 environmental compliance meets international regulatory requirements for hazardous substances
• Standard split lock design offers cost-effective, proven locking performance across multiple applications

Professional Applications & Engineering Value

This hot-dipped galvanized steel split lock washer addresses critical vibration-induced loosening challenges in industrial assemblies. The split lock washer type creates continuous spring tension against both the bearing surface and fastener, maintaining clamp load where conventional washers fail. The hot-dipped galvanization process provides a thick, durable zinc coating that withstands harsh environmental conditions, making it ideal for outdoor equipment, construction machinery, and marine applications. Engineered to ASME B18.21.1 standards, this washer delivers predictable performance in heavy machinery, structural steel connections, and high-vibration mechanical systems where reliability is paramount. The combination of Rockwell C38 hardness and precise dimensional control ensures consistent locking action throughout the product lifecycle.

Specification Summary & Compliance

This split lock washer features precise dimensions with 1.28" inner diameter, 2.036" outer diameter, and 0.312" thickness, specifically designed for 1 1/4" screw applications. Manufactured to ASME B18.21.1 specifications for standard split lock washers, it ensures dimensional accuracy and mechanical performance. The product maintains Rockwell C38 hardness for optimal spring properties and is fully RoHS 3 (2015/863/EU) compliant, meeting international environmental regulations for hazardous substance restrictions.