S-90337A439 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and reducing replacement costs.
• Exceptional strength and durability from a Rockwell B55 hardness and 70,000 psi tensile strength, ensuring reliable performance under high-stress conditions.
• Precise component alignment enabled by the 1" shoulder length with a precise fit, minimizing assembly errors and improving machinery accuracy.
• Secure and efficient fastening with the 10-32 UNF fine thread and Class 2A fit, providing vibration resistance and preventing loosening.
• Easy installation in confined spaces thanks to the low-profile socket head and 1/8" hex drive, allowing for quick assembly with standard tools.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated markets and sustainable operations.
• Reliable right-hand thread design for standard applications, offering consistent and predictable fastening performance.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address common challenges in machinery assembly, such as misalignment and component wear. The 18-8 Stainless Steel material provides excellent corrosion resistance, making it suitable for applications in moist or chemical-exposed environments, from automotive systems to food processing equipment. The 10-32 UNF fine thread and Class 2A fit ensure tight, secure connections that resist vibration and thermal cycling, reducing maintenance downtime. With a 1" shoulder length and precise diameter tolerances, it acts as a reliable pivot or spacer, enhancing the longevity and accuracy of rotating parts in industrial machinery. The low-profile socket head with a hex drive allows for easy access in tight spaces, streamlining installation and improving overall efficiency in production lines.

Specification Summary & Compliance

This shoulder screw adheres to UNF thread standards with a Class 2A thread fit for precise dimensional accuracy. Key specifications include a shoulder diameter of 1/4" with a tolerance of -0.001" to 0", and a shoulder length of 1" with a tolerance of 0" to 0.002". It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.