S-97345A652 3/8"-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel material, ideal for harsh environments and extending service life in industrial applications.
• Enhanced load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength, ensuring reliable performance under high-stress conditions.
• Precise alignment and smooth rotation thanks to the 1/2" shoulder diameter with tight tolerances, reducing wear and improving machinery efficiency.
• Secure and efficient installation using a 1/4" hex drive and knurled head, providing excellent grip and reducing slippage during assembly.
• High thread reliability with 3/8"-24 UNF Class 3A fine threads, offering superior vibration resistance and leak-proof sealing in critical assemblies.
• Consistent dimensional accuracy meeting ASME B18.3 standards, ensuring interchangeability and reducing assembly errors in B2B applications.
• Environmental and safety compliance with RoHS 3 and REACH regulations, making it safe for use in regulated industries and global markets.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address common industrial challenges, such as misalignment and corrosion-induced failures. Its fine UNF threads and Class 3A fit provide exceptional vibration resistance, crucial for machinery in automotive and aerospace sectors where precision is paramount. The knurled head and hex drive facilitate quick, tool-friendly installation, reducing downtime in assembly lines. With high tensile and shear strength, it supports heavy-duty applications like pivot points and rotating assemblies, while the corrosion-resistant material ensures longevity in humid or chemical-exposed environments, minimizing maintenance costs and enhancing operational reliability.

Specification Summary & Compliance

This shoulder screw features precise dimensions, including a shoulder diameter of 1/2" with tolerances from -0.004" to -0.002" and a shoulder length of 3/8" with tolerances of -0.005" to 0.005". Thread specifications adhere to 3/8"-24 UNF Class 3A for fine threading and tight fit. It complies with ASME B18.3 manufacturing standards, ensuring consistent quality. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental compliance for industrial use.