S-92153A447 21.2 mm ID x 33.6 mm OD DIN 127B Split Lock Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction, ideal for marine, chemical, and outdoor applications.
• Reliable vibration resistance prevents fastener loosening under dynamic loads, ensuring long-term assembly integrity.
• Precise dimensional fit with 21.2mm ID and 33.6mm OD designed for M20 screws, providing secure seating and uniform load distribution.
• Compliance with DIN 127B standard guarantees consistent quality, interchangeability, and performance in industrial settings.
• Environmental and safety compliance with RoHS 3 and REACH regulations, making it suitable for regulated industries and eco-conscious projects.
• Durable split lock design offers spring-like action to maintain clamping force, reducing maintenance needs and downtime.
• Versatile metric sizing ensures compatibility with global equipment and fastener systems, streamlining procurement and inventory.

Professional Applications & Engineering Value

This M20 split lock washer made from 316 stainless steel addresses critical challenges in demanding industrial environments, such as corrosion from chemicals, saltwater, or high humidity. The split lock washer type and compliance with DIN 127B ensure it effectively counters vibration-induced loosening in machinery, automotive assemblies, and structural frameworks. By maintaining consistent tension and resisting galvanic corrosion, it extends the service life of industrial fasteners, reducing failure risks and maintenance costs. Its metric system design and robust build make it a reliable choice for engineers and procurement specialists in sectors like manufacturing, marine engineering, and infrastructure, where vibration resistance and material integrity are paramount for operational safety and efficiency.

Specification Summary & Compliance

This washer conforms to DIN 127B specifications, with an inner diameter of 21.2 mm, outer diameter of 33.6 mm, and thickness ranging from 3.8 to 4.2 mm. It is manufactured from 316 stainless steel and is designed for M20 screw size applications. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it adheres to environmental and safety standards for hazardous substances, suitable for global industrial use.