S-91280A788 M14 x 60 mm ISO 4014, DIN 931, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength: Class 8.8 rating and 110,000 psi tensile strength ensure reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior Corrosion Resistance: Zinc plating provides a durable protective layer, extending the screw's service life in harsh or outdoor industrial environments.
• Optimized Load Distribution: Hex head design with external hex drive allows for high torque application and secure fastening, minimizing stripping and improving assembly efficiency.
• Enhanced Grip and Stability: Partially threaded shank with coarse M14x2 mm thread offers improved resistance to vibration and loosening, maintaining joint integrity over time.
• Precision Manufacturing: Thread Fit Class 6h and compliance with ISO 4014/DIN 931 ensure consistent dimensions and reliable interchangeability in metric assemblies.
• Robust Material Hardness: Rockwell C21 hardness provides excellent wear resistance, ensuring the fastener withstands repeated use without deformation.
• Regulatory Compliance: Meets RoHS 3 and REACH standards, making it suitable for global supply chains and environmentally conscious industries.

Professional Applications & Engineering Value

This M14 hex head screw is engineered to address critical challenges in industrial applications where vibration resistance, high tensile loads, and environmental durability are paramount. The Class 8.8 steel construction, combined with a zinc-plated finish, offers robust protection against corrosion, making it ideal for construction, machinery assembly, and heavy-duty equipment. The partially threaded design with coarse metric threading ensures superior clamping force and reduces the risk of thread stripping in soft or composite materials. By adhering to ISO 4014 and DIN 931 standards, this fastener guarantees precise fit and reliability, streamlining procurement for engineers and maintenance teams who require consistent, high-performance metric hex bolts that meet stringent international specifications.

Specification Summary & Compliance

This fastener features a Thread Fit of Class 6h with M14x2 mm coarse right-hand thread and a length of 60 mm. It is manufactured in accordance with ISO 4014 and DIN 931 specifications, ensuring dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated markets and environmentally sensitive applications.