S-97345A167 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and extended service life
• Precise component alignment ensured by the Class 3A thread fit and standard shoulder fit, reducing assembly errors and improving operational reliability
• High mechanical strength delivering 70,000 psi tensile and 35,000 psi minimum shear strength for demanding applications and heavy-duty use
• Enhanced grip and torque application from the knurled socket head and 1/8" hex drive, preventing tool slippage during installation
• Consistent dimensional accuracy with tight shoulder diameter and length tolerances, ensuring reliable performance in precision assemblies
• Broad regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for safe, globally accepted industrial use
• Optimized for coarse threading with 10-24 UNC right-hand threads, facilitating quicker assembly and disassembly in various machinery

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and rotating assemblies. The Class 3A thread fit and controlled shoulder tolerances minimize backlash and misalignment, which are common pain points in high-speed or vibratory environments. Its coarse UNC thread and knurled socket head enable efficient installation and secure fastening, reducing downtime in maintenance-heavy sectors like packaging, automotive, and aerospace. The material's inherent resistance to chemicals and moisture, combined with Rockwell B79 hardness, ensures long-term integrity even under cyclic loading, making it a reliable choice for pivots, spacers, and bearing supports where dimensional stability is non-negotiable.

Specification Summary & Compliance

The screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for superior engagement and minimal play. Dimensional controls include a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in international markets.