S-93837A140 6.5 mm ID x 9.9 mm OD DIN 7980 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance prevents loosening under dynamic loads, ensuring long-term joint integrity.
• Zinc-plated steel construction provides excellent corrosion resistance, extending service life in harsh industrial environments.
• Rockwell C44 hardness offers high durability and maintains locking force without deforming under pressure.
• DIN 7980 compliance guarantees precise dimensional accuracy and reliable performance in metric assembly systems.
• Standard split lock design allows for easy installation and effective spring action to secure M6 fasteners.
• RoHS 3 and REACH compliance ensures environmental safety and meets stringent regulatory standards for industrial use.
• Optimized dimensions (6.5mm ID, 9.9mm OD) ensure perfect fit and consistent performance with M6 screws.

Professional Applications & Engineering Value

This M6 split lock washer is engineered from zinc-plated steel to address critical challenges in industrial fastening, such as vibration-induced loosening and corrosion. The split lock washer type creates a spring force that maintains bolt tension, effectively resisting shocks and thermal cycling in machinery, automotive, and electrical assemblies. Its Rockwell C44 hardness ensures the washer does not flatten under load, preserving locking efficiency. Compliant with DIN 7980, it offers precise metric sizing (6.5mm ID, 9.9mm OD) for seamless integration, reducing assembly errors and downtime in high-demand applications.

Specification Summary & Compliance

This washer meets DIN 7980 standards for dimensional accuracy, including an ID of 6.5 mm, OD of 9.9 mm, and thickness of 1.5-1.7 mm, suitable for M6 screw size. It is manufactured from zinc-plated steel with a hardness of Rockwell C44 and conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring compliance with environmental and safety requirements for industrial fasteners.