S-91280A852 M16 x 90 mm ISO 4014, DIN 931, SAE J1199, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating, extending service life in harsh industrial environments
• High tensile strength of 110,000 psi and Class 8.8 grade for reliable performance in heavy-duty applications
• Coarse 2mm pitch thread ensures faster assembly and reduced cross-threading risks
• Partially threaded design with 38mm minimum thread length provides optimal grip and vibration resistance
• Precise Class 6h thread fit guarantees consistent engagement and load distribution
• External hex drive and 24mm head allows for high-torque installation with standard tools
• Compliance with ISO 4014, DIN 931, and SAE J1199 ensures global interoperability and quality assurance

Professional Applications & Engineering Value

This M16 hex head screw is engineered to address critical challenges in structural assembly and machinery. The Class 8.8 steel construction, combined with a Rockwell C21 hardness, delivers exceptional fatigue resistance under dynamic loads, making it ideal for construction, automotive frames, and industrial equipment. The zinc plated finish provides a protective barrier against oxidation and chemical exposure, prolonging fastener integrity in outdoor or humid settings. Its partially threaded metric design with coarse 2mm pitch ensures rapid installation and secure clamping in high-vibration environments, reducing maintenance downtime and enhancing operational safety.

Specification Summary & Compliance

Manufactured to ISO 4014, DIN 931, and SAE J1199 standards, this fastener maintains precise Class 6h thread fit tolerances for consistent performance. It is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting stringent environmental and safety regulations for global supply chains.