S-97832A173 10-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Precise alignment and spacing ensured by the 3" shoulder with tight tolerances, reducing wear on mating components.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding mechanical applications.
• Secure, non-slip fastening thanks to the knurled socket head and hex drive, allowing for high torque application without tool slippage.
• Fine thread accuracy with 10-32 UNF Class 3A fit, providing vibration resistance and reliable clamping force.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring quality and environmental safety.
• Durable material hardness of Rockwell B55 maintains thread integrity and resists deformation under load.

Professional Applications & Engineering Value

This 10-32 UNF shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial assemblies. The 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for machinery, automotive, and electronic equipment exposed to moisture or chemicals. The 3" shoulder length with precise diameter tolerances acts as a pivot or axle, ensuring accurate component positioning and reducing stress on threads. The fine UNF threading and Class 3A fit enhance vibration resistance in dynamic applications, while the knurled socket head provides a secure grip for efficient installation and maintenance. Ideal for use in jigs, fixtures, and rotating mechanisms, this screw delivers reliable performance where precision and durability are paramount.

Specification Summary & Compliance

This shoulder screw features a 10-32 UNF thread with Class 3A fit for high precision, a shoulder diameter of 1/4" with tolerance of -0.004" to -0.002", and shoulder length of 3" with tolerance of -0.005" to 0.005". It is manufactured in compliance with ASME B18.3 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and quality for industrial use.