S-91502A149 M5 x 25 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 PSI ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from the blue-dyed zinc plating protects against rust and environmental damage, extending service life in harsh industrial settings.
• High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity and drive engagement through repeated use.
• Precision hex socket drive (4mm) allows for secure tool engagement and high torque application, minimizing stripping and improving installation efficiency.
• Coarse thread pitch (0.8mm) enables faster assembly and better vibration resistance compared to fine thread alternatives.
• Class 5g6g thread fit ensures consistent mating with nuts and tapped holes, providing reliable clamping force and reducing assembly variations.
• Full compliance with international standards including DIN 912/ISO 4762 guarantees dimensional accuracy and interchangeability with other metric components.

Professional Applications & Engineering Value

These Class 12.9 socket head cap screws deliver critical performance advantages in heavy machinery, automotive assemblies, and precision equipment where high tensile strength and reliable thread engagement are paramount. The blue-dyed zinc-plated alloy steel construction addresses common industrial challenges including corrosion in humid environments and galvanic compatibility with adjacent components. The metric coarse thread design provides superior resistance to vibrational loosening while the hex socket drive enables high torque application in confined spaces. Engineered to DIN 912/ISO 4762 specifications, these M5 fully threaded screws maintain dimensional consistency across production batches, ensuring predictable performance in automated assembly systems and critical structural applications.

Specification Summary & Compliance

Manufactured to precise Class 5g6g thread tolerance per ISO metric standards, these screws guarantee proper fit with mating components. The 25mm length and M5 x 0.8mm thread dimensions adhere to DIN 912/ISO 4762 specifications for socket head cap screws. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety. The Class 12.9 strength rating corresponds to minimum tensile strength of 170,000 PSI, meeting international requirements for high-strength fasteners in critical applications.