S-91310A111 M30 x 50 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capacity with Class 10.9 strength grade and 150,000 psi tensile strength for reliable performance in high-stress applications
• Enhanced durability and wear resistance thanks to Rockwell C32 hardness and steel construction
• Quick installation and removal with standard external hex drive and 46mm head width for common tool compatibility
• Secure fastening in various materials with coarse 3.5mm pitch threads providing excellent grip and vibration resistance
• Precise thread engagement with Class 6g fit ensuring consistent performance and easy assembly
• Complete thread coverage along the 50mm length for maximum holding power across the entire fastener
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe industrial use

Professional Applications & Engineering Value

These M30 hex head screws deliver exceptional engineering value in demanding industrial environments where failure is not an option. The Class 10.9 steel construction provides the necessary structural integrity for heavy machinery, construction equipment, and industrial assembly applications requiring high tensile strength. The fully threaded metric design with coarse 3.5mm pitch ensures rapid installation while maintaining superior clamping force, effectively addressing vibration-induced loosening concerns in dynamic applications. The external hex drive with 46mm head width accommodates standard industrial tools, streamlining maintenance and assembly processes. With ISO 4017/DIN 933 compliance, these black steel fasteners guarantee interchangeability and reliability across global engineering standards, making them ideal for OEM manufacturing, structural steel connections, and heavy equipment maintenance where consistent performance is critical.

Specification Summary & Compliance

This hex head screw features M30x3.5mm coarse threads with Class 6g tolerance for precise fitment, manufactured to ISO 4017/DIN 933 standards ensuring dimensional accuracy and performance consistency. The fastener maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for various industrial applications without hazardous substance concerns. The Class 10.9 strength rating and specified mechanical properties including 150,000 psi tensile strength and Rockwell C32 hardness validate its performance for critical fastening requirements.