S-96144A345 M20 x 80 mm DIN 912, ISO 21269 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength: Class 12.9 rating with 170,000 psi tensile strength ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior Corrosion Resistance: Black-oxide finish on alloy steel provides enhanced protection against rust and environmental degradation, extending service life in harsh conditions.
• Precision Thread Fit: Class 5g6g thread fit with extra fine M20x1.5mm thread offers superior vibration resistance and secure fastening in precision assemblies.
• High Hardness & Durability: Rockwell C37 hardness ensures excellent wear resistance and maintains structural integrity under repetitive loads.
• Versatile Partially Threaded Design: Combines threaded (52mm min) and unthreaded sections for optimal clamping force distribution and ease of alignment in complex assemblies.
• Standardized Socket Drive: 17mm hex drive with standard socket head profile allows for high torque application and easy installation in confined spaces.
• International Compliance: Meets DIN 912/ISO 21269 standards with RoHS 3 and REACH certification, ensuring global regulatory acceptance and environmental safety.

Professional Applications & Engineering Value

This M20 socket head cap screw with extra fine 1.5mm pitch thread delivers critical engineering advantages in demanding industrial environments. The black-oxide alloy steel construction provides superior corrosion resistance where moisture, chemicals, or outdoor exposure threaten fastener integrity. The Class 12.9 strength rating (170,000 psi tensile strength) makes it ideal for heavy machinery, automotive assemblies, and structural applications requiring reliable load-bearing capabilities. The partially threaded design ensures precise clamping force distribution while the extra fine metric thread offers enhanced vibration resistance in dynamic systems. With Rockwell C37 hardness, these screws maintain dimensional stability under extreme pressure, preventing stripping and deformation during high-torque installation. The 17mm hex drive facilitates efficient assembly in space-constrained applications, making these precision metric fasteners essential for manufacturing, automation, and equipment maintenance where failure is not an option.

Specification Summary & Compliance

This socket head cap screw features Class 5g6g thread fit tolerance for precision engagement, with M20x1.5mm extra fine metric threads in right-hand orientation. Manufacturing complies with DIN 912/ISO 21269 specifications, ensuring dimensional accuracy and interchangeability. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) certified, meeting the latest environmental regulations for hazardous substance restrictions. With 80mm total length and 52mm minimum thread length, these screws deliver consistent performance across industrial applications requiring high-strength, corrosion-resistant fastening solutions.