S-91202A222 3.4 mm ID x 6.2 mm OD DIN 127B Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents loosening under dynamic loads, ensuring long-term joint integrity in machinery and equipment.
• Zinc-plated steel construction provides excellent corrosion resistance, extending service life in harsh industrial environments.
• Precise M3 screw compatibility with 3.4mm ID and 6.2mm OD ensures a perfect fit, simplifying assembly and reducing installation errors.
• High Rockwell C44 hardness offers exceptional durability and spring-back action, maintaining consistent locking force over repeated use.
• Compliance with DIN 127B standard guarantees dimensional accuracy and reliable performance for metric fastener systems.
• RoHS 3 and REACH compliance meets stringent environmental regulations, making them safe for global industrial supply chains.
• Optimized 0.7-0.9mm thickness balances flexibility and strength, providing effective locking without compromising space constraints.

Professional Applications & Engineering Value

This M3 split lock washer is engineered to solve critical fastening challenges in industrial applications where vibration-induced loosening can lead to equipment failure. The zinc-plated steel material combats corrosion in demanding environments like automotive assemblies, electrical enclosures, and machinery frames. Its split lock design creates a continuous spring force that compensates for thermal expansion and dynamic stresses, maintaining bolt preload. By adhering to the DIN 127B standard, it ensures interchangeability and reliability in metric fastener systems, reducing maintenance costs and downtime. Ideal for vibration-resistant needs in manufacturing, these washers deliver consistent performance where secure locking is non-negotiable.

Specification Summary & Compliance

This washer features precise dimensions: 3.4mm ID, 6.2mm OD, and 0.7-0.9mm thickness, conforming to DIN 127B specifications for dimensional tolerance and performance. It is manufactured from zinc-plated steel with a Rockwell C44 hardness to ensure durability. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its safety and environmental standards for industrial use.