S-90374A111 M5 DIN 6923, ISO 4161 Flange Nuts

Key Features & Benefits at a Glance

• Enhanced vibration resistance with integrated flange eliminating the need for separate washers, reducing assembly time and parts count.
• Superior corrosion protection from the zinc-plated steel finish, extending service life in demanding industrial environments.
• High-strength Class 8 performance ensures reliable, durable fastening for heavy-duty applications.
• Wide bearing surface from the 11.8 mm flange distributes load effectively, preventing surface damage and loosening.
• Easy installation and removal with the standard 8 mm external hex drive, compatible with common tools.
• Guanteed dimensional accuracy and interchangeability, conforming to DIN 6923 and ISO 4161 standards.
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives.

Professional Applications & Engineering Value

This M5 flange nut is engineered to solve common challenges in assembly and maintenance. The zinc-plated steel construction provides a robust barrier against rust and corrosion, which is critical for machinery and equipment exposed to harsh conditions. The integrated flange acts as a built-in washer, increasing the clamping area to prevent loosening under vibration and dynamic loads, a common failure point in automotive, machinery, and structural applications. Its coarse thread (0.8 mm pitch) and Class 6H thread fit allow for faster installation and better tolerance to minor debris, reducing the risk of cross-threading. This combination of a secure external hex drive and right-hand thread makes it an efficient and reliable choice for production lines and field service, ensuring long-term joint integrity.

Specification Summary & Compliance

This nut features an M5 thread with a 0.8 mm pitch and a Class 6H thread fit per ISO standards, ensuring precise engagement. The dimensional profile, including an 8 mm width and 5 mm height, conforms to DIN 6923 and ISO 4161 manufacturing specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) directives, confirming it is free of restricted hazardous substances for safe use in industrial and international markets.