S-91259A471 10-24 ASME B18.3, ASTM A574 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional Corrosion Resistance with black oxide finish for reliable performance in harsh industrial environments
• Superior Load-Bearing Capacity with 140,000 psi tensile strength for demanding mechanical applications
• Precision Thread Engagement with Class 3A fit ensuring secure fastening and vibration resistance
• Enhanced Grip and Handling through knurled head design for easy installation and removal
• Optimal Material Hardness at Rockwell C32 providing excellent wear resistance and durability
• Standardized Compatibility with UNC coarse threads and 1/8" hex drive for universal tool matching
• Regulatory Compliance Assurance meeting ASME B18.3, RoHS 3, and REACH standards for quality and safety

Professional Applications & Engineering Value

This 10-24 UNC shoulder screw delivers critical engineering solutions for precision machinery and industrial equipment. The alloy steel construction with black oxide finish provides superior protection against corrosion and wear in demanding environments. The 3/8" shoulder length with precise tolerances ensures accurate alignment in rotating assemblies, while the Class 3A thread fit maintains secure fastening under vibration and dynamic loads. The socket head design with knurled texture offers excellent torque transmission and easy access in confined spaces, making it ideal for automotive, aerospace, and manufacturing applications where reliability and precision are paramount.

Specification Summary & Compliance

This shoulder screw features Class 3A thread fit with UNC coarse threading and maintains shoulder diameter tolerance of -0.004" to -0.002" with shoulder length tolerance of -0.005" to 0.005". Manufactured to ASME B18.3 specifications using ASTM A574 material, the component is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, ensuring environmental responsibility and regulatory adherence for global industrial applications.