S-94383A150 10-24 ASME B18.3, ASTM A574 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 140,000 psi tensile strength and 84,000 psi shear strength for reliable performance in demanding applications
• Superior corrosion resistance from the black oxide finish, extending service life in harsh industrial environments
• Precise alignment and spacing ensured by the 3/4" shoulder with tight diameter tolerance for consistent assembly quality
• High-strength alloy steel construction with Rockwell C32 hardness provides excellent durability and wear resistance
• Secure installation and removal with hex socket drive and knurled head for superior grip and torque transmission
• Reliable thread engagement through Class 3A thread fit and UNC coarse threads for vibration resistance and quick assembly
• Full regulatory compliance with ASME B18.3 standards, RoHS 3, and REACH for global industrial applications

Professional Applications & Engineering Value

This alloy steel shoulder screw delivers critical engineering solutions for precision machinery and industrial equipment. The 3/4" shoulder length with controlled tolerances provides accurate component positioning in rotating assemblies, pivot points, and guide mechanisms, eliminating misalignment issues. The black oxide finish offers enhanced corrosion protection while maintaining dimensional stability in demanding environments. With UNC coarse threads and Class 3A thread fit, these socket head shoulder screws ensure secure fastening in high-vibration applications such as automotive fixtures, manufacturing jigs, and conveyor systems. The combination of high tensile strength and Rockwell C32 hardness makes them ideal for applications requiring repeated disassembly and reassembly without performance degradation.

Specification Summary & Compliance

This shoulder screw features precision 10-24 UNC coarse threads with Class 3A thread fit for superior engagement. Critical dimensions include shoulder diameter of 1/4" (tolerance: -0.004" to -0.002") and shoulder length of 3/4" (tolerance: -0.005" to 0.005") for exacting alignment requirements. Manufactured to ASME B18.3 specifications using ASTM A574 alloy steel, the screw is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.