S-91239A451 M8 x 65 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength – With 140,000 psi tensile strength and Class 10.9 rating, these screws withstand high-stress loads, reducing the risk of fastener failure in demanding applications.
• Superior Corrosion Resistance – The black-oxide coating on alloy steel provides enhanced protection against rust and environmental wear, extending service life in harsh conditions.
• High Hardness & Durability – Rockwell C32 hardness ensures excellent wear resistance and maintains structural integrity under repeated use and vibration.
• Reliable Thread Engagement – Fully threaded M8x1.25mm coarse threads with Class 6g fit offer secure, easy installation and strong holding power in various materials.
• Convenient Hex Drive Design – The 5 mm hex drive and rounded button head allow for quick, tool-accessible tightening and a low-profile finish that minimizes snagging.
• Compliance with International Standards – Meets ISO 7380 specifications and is RoHS 3 and REACH compliant, ensuring safety and environmental responsibility for global projects.
• Versatile Metric Sizing – Standard M8 diameter and 65mm length make these screws ideal for replacement or new assembly in metric-based industrial systems.

Professional Applications & Engineering Value

Engineered for high-performance industrial applications, these Class 10.9 black-oxide alloy steel hex screws address critical needs in machinery, automotive, and construction sectors where vibration resistance and long-term reliability are paramount. The fully threaded M8x1.25mm coarse thread design ensures rapid installation and superior grip in metal, plastic, and composite assemblies, reducing assembly time and maintenance costs. The black-oxide surface treatment not only enhances corrosion resistance but also provides a consistent, non-galling finish that withstands exposure to oils and moisture. By integrating ISO 7380 compliance and high tensile strength, these metric rounded head screws deliver consistent performance in heavy-duty fastening, minimizing downtime and ensuring operational safety in demanding environments.

Specification Summary & Compliance

This product features precise metric threading with Class 6g tolerance and M8x1.25mm coarse thread pitch, ensuring compatibility with standard nuts and tapped holes. Manufactured to ISO 7380 specifications, it includes full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.