S-91861A210 M16 DIN 6915, ISO 4775 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load distribution due to the extra wide hex profile, reducing surface pressure and preventing joint failure in high-stress applications.
• Superior corrosion resistance provided by the zinc-plated steel construction, ensuring long-term durability in harsh industrial environments.
• High tensile strength and reliability with a Class 10 strength grade, making it suitable for critical, heavy-duty fastening assemblies.
• Guaranteed dimensional accuracy and interchangeability through compliance with DIN 6915 and ISO 4775 international standards.
• Easy and secure installation with a standard external hex drive and coarse metric thread (M16x2mm), allowing for efficient assembly with common tools.
• Precise thread fit with a Class 6H internal thread, ensuring a secure and vibration-resistant connection with mating bolts.
• Safe for regulated industries as it is fully compliant with REACH and RoHS 3 environmental directives.

Professional Applications & Engineering Value

This heavy-duty hex nut is engineered to solve critical challenges in structural and machinery applications where high tensile strength and vibration resistance are paramount. The extra wide profile significantly increases the bearing surface, which is crucial for distributing immense clamping forces and preventing damage to connected materials. Manufactured from zinc-plated steel, it offers a robust defense against corrosion, extending service life in demanding environments like construction, heavy equipment manufacturing, and infrastructure projects. Its compliance with DIN 6915 and ISO 4775 standards guarantees precise metric coarse thread geometry (M16x2mm) and a Class 6H thread fit, ensuring reliable performance and compatibility in global engineering specifications, making it a trusted component for professionals who cannot compromise on joint integrity.

Specification Summary & Compliance

This nut features an M16 metric coarse thread with a 2mm pitch and a Class 6H thread fit for precision. It is manufactured to the dimensional and mechanical specifications of DIN 6915 and ISO 4775. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, ensuring it meets the latest environmental and safety standards for industrial use.