S-97345A874 5/8"-11 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction for reliable performance in harsh industrial environments.
• Precise component alignment ensured by the 3/4" shoulder diameter with tight tolerance for reduced vibration and wear.
• High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding applications.
• Secure and easy installation using the 3/8" hex socket drive and knurled head for improved grip and torque application.
• Accurate and durable threading with Class 3A fit and UNC coarse thread for strong, reliable fastening in high-stress conditions.
• Extended service life due to Rockwell B79 hardness and robust design, minimizing maintenance and replacement costs.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for safe, quality-assured use in various sectors.

Professional Applications & Engineering Value

This 5/8"-11 UNC shoulder screw is engineered to address critical challenges in industrial applications such as machinery assembly, automotive systems, and precision equipment. The 316 Stainless Steel material offers excellent resistance to corrosion and chemicals, making it ideal for environments exposed to moisture or aggressive substances. The socket head with hex drive allows for efficient installation in confined spaces, while the knurled texture enhances handling during assembly. With a 3-1/2" shoulder length and precise diameter, it provides stable support for rotating parts, reducing misalignment and extending component lifespan. This design ensures reliable performance in heavy-duty settings, from manufacturing to aerospace, where durability and precision are paramount.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with UNC coarse threading for high precision and strength. Key dimensions include a shoulder diameter of 3/4" (tolerance: -0.004" to -0.002") and shoulder length of 3-1/2" (tolerance: -0.005" to 0.005"), ensuring consistent performance. It complies with ASME B18.3 specifications for dimensional accuracy and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety standards for industrial use.