S-90327A129 M5 x 25 mm DIN 7984 Alloy Steel Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength with Class 8.8 rating and 110,000 PSI ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
• Superior corrosion resistance from zinc-plated alloy steel construction prolongs service life in harsh industrial environments, minimizing maintenance needs.
• Precise low-profile socket head with 3 mm hex drive allows for easy installation in confined spaces while providing secure torque transmission.
• Optimized thread design with M5 coarse pitch (0.8 mm) and Class 6g fit enables quick assembly and strong holding power in various materials.
• Partially threaded shank (16 mm min thread length) provides enhanced clamping force and prevents loosening in dynamic applications.
• Compliance with DIN 7984 standards guarantees dimensional accuracy and interchangeability, ensuring consistent quality across batches.
• Environmental regulatory adherence to RoHS 3 and REACH demonstrates commitment to safety and sustainability in manufacturing processes.

Professional Applications & Engineering Value

These M5 socket head cap screws are engineered to address critical fastening challenges in industrial settings. The zinc-plated alloy steel construction combats corrosion in moisture-prone environments, while the Class 8.8 strength rating (with Rockwell C20 hardness) ensures durability under vibrational and tensile loads. The low-profile socket head and 3 mm hex drive facilitate installation in tight spaces common in machinery, automotive assemblies, and electronic enclosures. With a coarse thread pitch of 0.8 mm, these screws provide rapid engagement and reduced cross-threading risks, making them ideal for high-volume production lines. Their partially threaded design concentrates clamping force precisely where needed, preventing joint slippage in equipment subjected to constant motion or thermal cycling.

Specification Summary & Compliance

This screw features M5 x 0.8 mm coarse metric threads with a Class 6g tolerance for precise fit, a minimum thread length of 16 mm, and overall length of 25 mm. It conforms to DIN 7984 manufacturing specifications for dimensional consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no restricted hazardous substances are used. The Class 8.8 mechanical properties align with international standards for high-strength fasteners, providing assurance of performance in demanding applications.