S-97768A260 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 wear resistance and reduced light reflection provided by the black oxide finish, enhancing durability and performance in assembly applications.
• High-strength performance with a tensile strength of 70,000 psi and shear strength of 35,000 psi, ensuring reliable fastening under heavy loads.
• Precise thread engagement and vibration resistance due to the Class 3A thread fit and coarse 10-24 UNC thread, minimizing loosening in dynamic applications.
• Secure and easy installation with a knurled socket head and 1/8" hex drive, allowing for high torque application and reduced tool slippage.
• Accurate component alignment and spacing enabled by the precisely machined shoulder with tight diameter and length tolerances.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory acceptance for global supply chains.

Professional Applications & Engineering Value

This shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and heavy-duty equipment. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for environments exposed to moisture, chemicals, or outdoor conditions. The black oxide finish not only adds an extra layer of protection against wear but also reduces glare, which is beneficial in optical or sensitive assembly setups. The 10-24 UNC coarse thread with a Class 3A fit ensures quick assembly and reliable holding power, reducing the risk of thread stripping in high-vibration applications like motors and conveyors. The knurled socket head with a hex drive allows for efficient torque transmission, minimizing installation time and improving workplace safety. Ideal for use in pivoting mechanisms, bearing mounts, and electronic enclosures, this fastener delivers consistent performance, reduces maintenance downtime, and enhances the longevity of industrial assemblies.

Specification Summary & Compliance

This shoulder screw features a 10-24 UNC thread with a Class 3A thread fit for precise dimensional accuracy, ensuring reliable engagement and load distribution. The shoulder diameter and length are manufactured to tight tolerances (e.g., shoulder diameter: -0.004" to -0.002", shoulder length: -0.005" to 0.005") for consistent performance in alignment-critical applications. It complies with ASME B18.3 specifications for dimensional and mechanical standards, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated industries without hazardous substances.