S-94383A190 10-24 ASME B18.3, ASTM A574 Shoulder Screws

Key Features & Benefits at a Glance

• Superior load-bearing capacity with 140,000 psi tensile strength and 84,000 psi shear strength for reliable performance in high-stress applications
• Enhanced corrosion resistance through black oxide finish, extending service life in demanding industrial environments
• Precision alignment and smooth rotation thanks to the 2" shoulder length with tight diameter tolerance (-0.004" to -0.002")
• Secure fastening with minimal play achieved through Class 3A thread fit and UNC coarse thread design
• Easy installation and removal with hex drive socket and knurled head for improved grip during torque application
• Consistent quality assurance through compliance with ASME B18.3 manufacturing standards and Rockwell C32 hardness specification
• Environmentally responsible manufacturing with full RoHS 3 and REACH compliance for global regulatory acceptance

Professional Applications & Engineering Value

This alloy steel shoulder screw delivers exceptional engineering value in precision assembly applications where alignment and rotational movement are critical. The 2" shoulder length with controlled diameter tolerance provides precise bearing surfaces for gears, pulleys, and linkages, eliminating the need for additional bushings. The black oxide finish offers superior corrosion protection in industrial environments while maintaining dimensional stability. With its 10-24 UNC coarse thread and Class 3A thread fit, this fastener ensures secure mounting with minimal backlash in machinery, automation systems, and precision equipment. The hex drive socket head with knurled texture enables efficient installation in confined spaces while preventing tool slippage during torque application.

Specification Summary & Compliance

This shoulder screw features precision 10-24 UNC coarse threads with Class 3A fit for superior thread engagement. The shoulder maintains tight dimensional control with diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". Manufactured to ASME B18.3 specifications using ASTM A574 alloy steel with Rockwell C32 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring global acceptance for industrial applications.