S-92153A451 3.9 mm ID x 6.7 mm OD DIN 127B Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-motion environments, ensuring long-term joint integrity.
• Excellent corrosion resistance from 316 stainless steel construction, ideal for harsh or outdoor industrial settings.
• Precise dimensional fit with a 3.9mm ID and 6.7mm OD designed specifically for M3.5 screws, providing reliable and consistent performance.
• Durable and resilient material with a Rockwell C35 hardness offers excellent spring-back action and resistance to deformation.
• Guaranteed compliance with the DIN 127B standard ensures consistent quality, interchangeability, and reliable engineering performance.
• Environmental and safety compliance with RoHS 3 and REACH regulations makes it suitable for use in regulated industries and global supply chains.
• Versatile industrial application due to its metric sizing and robust stainless steel build, suitable for a wide range of machinery and equipment.

Professional Applications & Engineering Value

This M3.5 split lock washer is engineered to solve critical challenges in industrial fastening, specifically vibration-induced loosening and corrosion. Manufactured from 316 stainless steel, it provides exceptional resistance to chemicals, saltwater, and other corrosive elements, making it a reliable choice for marine, chemical processing, and food industry applications. The split lock design and specific Rockwell C35 hardness ensure the washer exerts a consistent spring force, maintaining clamp load and preventing back-off in dynamic or high-vibration environments like motors, conveyors, and heavy machinery. Its compliance with the DIN 127B standard guarantees dimensional accuracy and performance reliability, providing engineers and procurement specialists with a trusted component for maintaining assembly security and reducing maintenance frequency.

Specification Summary & Compliance

This washer conforms to the dimensional and performance requirements of the DIN 127B standard. Key specifications include an Inside Diameter (ID) of 3.9 mm, an Outside Diameter (OD) of 6.7 mm, and a Thickness of 0.7-0.9 mm. The material is 316 Stainless Steel with a hardness of Rockwell C35. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and approved for use in demanding industrial and international markets.