S-91280A784 M14 x 45 mm ISO 4017, DIN 933, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior tensile strength of 110,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Enhanced corrosion resistance from zinc plating extends service life and maintains integrity in harsh or outdoor industrial environments.
• High-strength Class 8.8 grade provides excellent durability and load-bearing capacity, ideal for heavy-duty machinery and structural assemblies.
• Precise Class 6h thread fit guarantees smooth installation and secure fastening, minimizing assembly time and improving joint reliability.
• Fully threaded M14x2mm coarse pitch design offers maximum grip and vibration resistance, ensuring long-term stability in dynamic applications.
• External hex drive and hex head allow for easy installation with standard tools, enhancing efficiency in high-volume production settings.
• Compliance with ISO 4017 and DIN 933 standards ensures consistent quality and interchangeability, supporting global engineering specifications.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this M14 hex head screw combines steel material and zinc plating to address common challenges like corrosion and mechanical stress. The Class 8.8 strength grade and Rockwell C21 hardness provide robust performance in construction, automotive, and machinery assembly, where high tensile strength and vibration resistance are critical. The fully threaded metric coarse pitch design ensures quick, secure fastening in materials prone to loosening, while the external hex drive simplifies maintenance and disassembly. Ideal for structural fastening and equipment that demands long-term reliability under extreme conditions, this screw minimizes downtime and enhances operational safety.

Specification Summary & Compliance

This screw adheres to precise metric dimensions with a Class 6h thread fit for accurate engagement, manufactured according to ISO 4017 and DIN 933 standards. It meets ISO 898 for mechanical properties and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global supply chains.