S-97768A248 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Superior thread engagement and vibration resistance due to the Class 3A thread fit, ensuring reliable fastening in high-stress applications.
• High tensile and shear strength (70,000 psi and 35,000 psi respectively) for dependable performance in demanding mechanical assemblies.
• Enhanced durability and wear resistance provided by the Black Oxide finish and a hardness of Rockwell B55.
• Secure and non-slip installation enabled by the knurled socket head with a standard hex drive, allowing for high torque application.
• Precise component alignment and spacing thanks to the standardized 1/2" shoulder with tight diameter and length tolerances.
• Guaranteed quality and material safety through compliance with ASME B18.3, RoHS 3, and REACH standards.

Professional Applications & Engineering Value

This 10-24 UNC shoulder screw is engineered to address critical challenges in precision assemblies. The 18-8 Stainless Steel material offers excellent resistance to corrosion and oxidation, making it suitable for applications in manufacturing, automation, and outdoor equipment where environmental factors are a concern. The Class 3A thread fit and coarse UNC thread provide superior holding power and reduce the risk of loosening under vibration, a common issue in machinery and moving parts. The integral 1/2" shoulder acts as a precise pivot, bearing surface, or locator, ensuring accurate alignment of components like gears, pulleys, and linkages. Combined with the Black Oxide finish for added lubricity and protection, this socket head shoulder screw delivers reliable, long-term performance in heavy-duty industrial settings, minimizing maintenance and downtime.

Specification Summary & Compliance

This shoulder screw features a 10-24 UNC thread with a Class 3A fit for precise thread engagement. The shoulder has a diameter of 1/4" with a tolerance of -0.004" to -0.002" and a length of 1/2" with a tolerance of -0.005" to 0.005", ensuring high dimensional accuracy. It is manufactured in compliance with the ASME B18.3 standard and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated and environmentally conscious industries.