S-96144A343 M20 x 50 mm DIN 912, ISO 21269 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength-to-weight ratio with Class 12.9 rating and 170,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance from black-oxide coating on alloy steel, extending service life in demanding industrial environments
• Precise thread engagement with M20 x 1.5mm extra fine thread and Class 5g6g fit ensuring vibration resistance and secure fastening
• Optimized drive performance through 17mm hex socket design providing maximum torque transfer and reduced cam-out risk
• Enhanced durability from Rockwell C37 hardness maintaining structural integrity under repeated loading conditions
• Global compliance assurance meeting DIN 912/ISO 21269 standards for consistent quality and interchangeability
• Environmental responsibility with full RoHS 3 and REACH compliance for sustainable manufacturing practices

Professional Applications & Engineering Value

This high-strength socket head cap screw delivers critical performance advantages in precision engineering applications where failure is not an option. The black-oxide alloy steel construction combined with Class 12.9 strength rating provides exceptional resistance to shock loading and fatigue, making it ideal for heavy machinery, automotive assemblies, and industrial equipment. The extra fine metric thread (M20 x 1.5mm) ensures superior clamping force distribution and vibration resistance in critical joints, while the standard socket head profile with 17mm drive allows for efficient installation in confined spaces. Engineers specify this fully threaded fastener for applications demanding consistent performance under extreme conditions, from manufacturing fixtures to renewable energy systems, where corrosion resistance and long-term reliability are paramount.

Specification Summary & Compliance

This socket head cap screw features precision metric threading with M20 x 1.5mm extra fine pitch and Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy and proper engagement. The fastener is manufactured to DIN 912/ISO 21269 specifications with a 30mm head diameter, 20mm head height, and 50mm fully threaded length. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and restricted substance adherence. The Class 12.9 strength classification and Rockwell C37 hardness verify mechanical properties suitable for the most demanding industrial applications.