S-91280A039 M3 x 6 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength with Class 8.8 rating and 110,000 psi capacity for reliable performance in demanding applications
• Superior corrosion resistance thanks to black steel construction, extending service life in industrial environments
• Easy installation and removal with external hex drive design providing secure tool engagement and torque transmission
• Consistent thread engagement through Class 6g thread fit and coarse 0.5mm pitch for faster assembly and reduced cross-threading risk
• Full thread coverage along the entire 6mm length ensures maximum grip and load distribution across connected materials
• Enhanced durability with Rockwell C21 hardness maintaining structural integrity under repeated stress and vibration
• Global compliance assurance meeting ISO 4017/DIN 933 standards plus RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

This M3 hex head screw delivers exceptional engineering value across industrial applications where vibration resistance and structural integrity are critical. The Class 8.8 steel construction provides reliable performance in machinery assembly, automotive components, and electrical enclosures where high tensile strength prevents joint failure under dynamic loads. The fully threaded right-hand design with coarse 0.5mm pitch ensures rapid installation in production environments while maintaining secure fastening in metal-to-metal and plastic assemblies. The external hex drive allows for high torque application without stripping, making it ideal for maintenance operations and equipment requiring periodic disassembly. With ISO 4017/DIN 933 compliance, this metric screw guarantees dimensional accuracy and interchangeability in global manufacturing operations.

Specification Summary & Compliance

This fastener features precise Class 6g thread fit tolerance per metric standards with M3 x 0.5mm coarse pitch threading and 6mm length. Manufactured to ISO 4017 and DIN 933 specifications, it ensures dimensional consistency and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting current substance restriction requirements for industrial applications worldwide.