S-97345A702 3/8"-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial and marine environments.
• High mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable performance under heavy loads.
• Precision fit and alignment ensured by Class 3A thread fit and standard shoulder fit, reducing assembly errors and improving component stability.
• Easy installation and grip with a knurled socket head and 1/4" hex drive, allowing for secure tool engagement and reduced slippage.
• Durable and wear-resistant due to Rockwell B79 hardness, extending service life in high-stress applications.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
• Versatile fine thread design with 3/8"-24 UNF threads providing better clamping force and vibration resistance in precision assemblies.

Professional Applications & Engineering Value

This 316 Stainless Steel shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. Its fine UNF thread and precise Class 3A fit ensure tight tolerances, reducing the risk of loosening under vibration in machinery, automotive, and marine equipment. The knurled socket head enhances grip during installation, while the robust 1/2" shoulder diameter provides stable support for rotating parts like bearings and pulleys. Made from marine-grade 316 stainless steel, it resists pitting and corrosion in saline or chemical exposures, making it a reliable choice for high-tensile strength applications where durability and compliance with ASME B18.3 standards are critical.

Specification Summary & Compliance

This shoulder screw features a 3/8"-24 UNF fine thread with Class 3A fit for high precision, along with a shoulder diameter of 1/2" (tolerance: -0.004" to -0.002") and shoulder length of 2" (tolerance: -0.005" to 0.005"). It meets ASME B18.3 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industry-standard reliability.