S-91280A059 M5 x 50 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capability with Class 8.8 strength rating and 110,000 psi tensile strength for reliable performance in demanding applications
• Enhanced durability and wear resistance thanks to Rockwell C21 hardness steel construction
• Quick and secure installation with external hex drive design and coarse 0.8mm pitch for efficient assembly
• Full thread engagement along the entire 50mm length ensures maximum holding power and vibration resistance
• Precision manufacturing with Class 6g thread fit guarantees consistent performance and interchangeability
• Corrosion-resistant black finish provides additional protection for extended service life in industrial environments
• Global compliance assurance meeting ISO 4017 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

Engineered for industrial applications requiring reliable fastening solutions, these M5 hex head screws deliver exceptional performance in machinery assembly, structural frameworks, and equipment manufacturing. The Class 8.8 steel construction provides the necessary strength to withstand dynamic loads and vibration, while the fully threaded metric design ensures uniform stress distribution. The coarse pitch threading (0.8mm) facilitates rapid installation and reduces cross-threading risks, making them ideal for production lines and maintenance operations. With ISO 4017 compliance and external hex drive, these black steel fasteners offer consistent quality and easy installation using standard tools, significantly reducing assembly time and improving operational efficiency in demanding industrial settings.

Specification Summary & Compliance

This M5 hex head screw features precision metric coarse threading with 0.8mm pitch and Class 6g thread fit tolerance, ensuring dimensional accuracy per ISO 4017 standards (equivalent to DIN 933). Manufactured from high-strength steel with Rockwell C21 hardness and 110,000 psi tensile strength, meeting Class 8.8 strength requirements. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring strict regulatory adherence.