S-91280A346 M6 x 50 mm ISO 4017, DIN 933, 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 demanding industrial environments
• High tensile strength of 110,000 psi ensures reliable performance in heavy-duty applications and prevents fastener failure
• Class 8.8 strength grade provides excellent load-bearing capacity for critical assembly connections
• Fully threaded design offers maximum grip length and uniform stress distribution along the entire fastener
• External hex drive with 10mm head allows for high torque application and easy installation with standard tools
• Precision Class 6h thread fit guarantees consistent engagement and vibration resistance in assembled components
• Comprehensive compliance with ISO, DIN, and SAE standards ensures interchangeability and global manufacturing acceptance

Professional Applications & Engineering Value

These M6 hex head screws deliver exceptional engineering value through their Class 8.8 steel construction and zinc plating, specifically designed to address common industrial challenges. The combination of 110,000 psi tensile strength and Rockwell C21 hardness provides reliable performance in structural applications, machinery assembly, and equipment manufacturing where vibration resistance and joint integrity are critical. The fully threaded metric coarse thread design ensures maximum surface contact and clamping force distribution, preventing loosening under dynamic loads. With external hex drive compatibility, these fasteners enable efficient installation and maintenance in confined spaces, making them ideal for automotive, construction, and industrial machinery applications requiring durable, corrosion-resistant fastening solutions that meet international standards.

Specification Summary & Compliance

This M6 x 1 mm pitch x 50 mm length hex head screw features Class 6h thread tolerance with right-hand coarse threading, manufactured to ISO 4017, DIN 933, and SAE J1199 specifications. The fastener maintains Rockwell C21 hardness and meets Class 8.8 strength requirements according to ISO 898. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring restricted substance compliance.