S-97478A173 M24 x 150 mm DIN 6914, ISO 7412 Metric High-Strength Steel Heavy Hex Head Screws for Structural Applications

Key Features & Benefits at a Glance

• Exceptional corrosion resistance due to hot-dipped galvanized steel coating, ensuring long-term reliability in harsh environments.
• High tensile strength of 150,000 PSI and Class 10.9 grade for superior load-bearing capacity in demanding structural applications.
• Rockwell C32 hardness provides excellent wear resistance and durability under repetitive stress.
• Coarse 3mm pitch thread allows for quick and secure installation, reducing assembly time and improving efficiency.
• External hex drive and hex head design enables easy tightening with standard tools, minimizing slippage and ensuring consistent torque application.
• Partially threaded shank offers optimal grip length (111mm) for precise clamping force distribution in heavy-duty connections.
• Compliance with DIN 6914/ISO 7412 standards guarantees dimensional accuracy and interchangeability for global engineering projects.

Professional Applications & Engineering Value

This M24 hex head screw is engineered from hot-dipped galvanized steel to address critical challenges in industrial and construction settings, such as exposure to moisture, high loads, and vibrational stresses. The Class 10.9 strength grade and 150,000 PSI tensile strength ensure reliable performance in heavy machinery, structural steel connections, and infrastructure projects where failure is not an option. The coarse metric thread with a 3mm pitch facilitates rapid assembly in coarse-alignment applications, reducing labor costs. Combined with Rockwell C32 hardness, it resists deformation under torque, making it ideal for external hex drive operations in repetitive disassembly and reassembly cycles. Its partially threaded design concentrates clamping force effectively, preventing joint loosening in dynamic environments like bridges, conveyor systems, and industrial equipment frames.

Specification Summary & Compliance

This fastener features a metric M24 x 3mm coarse thread with Class 6g thread fit for precise tolerance, ensuring consistent engagement and load distribution. It adheres to DIN 6914 and ISO 7412 manufacturing specifications, guaranteeing dimensional accuracy and reliability. Additionally, it is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting stringent environmental and safety regulations for industrial use worldwide.