S-94035A171 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-lasting fastening.
• Precise alignment and positioning ensured by a 1-5/8" shoulder with tight ±0.002" length tolerance and precise shoulder fit.
• Easy installation and removal using a standard 3/32" hex drive socket head, reducing assembly time and tool wear.
• Consistent thread engagement with Class 2A UNC coarse threads, providing secure fastening and vibration resistance.
• Compliance with environmental regulations, being RoHS 3 and REACH compliant for safe and sustainable use.
• Versatile right-hand thread design suitable for a wide range of machinery and equipment assembly applications.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address critical alignment and durability challenges in industrial settings. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to corrosion and wear, making it ideal for applications in machinery, automotive, and electronics where exposure to moisture and chemicals is common. The precise shoulder with minimal tolerance ensures accurate component positioning, reducing misalignment and improving operational efficiency. Its high tensile strength and Rockwell B55 hardness offer reliable performance under dynamic loads, while the socket head with hex drive allows for easy installation in confined spaces. These features make it a trusted choice for engineers seeking durable and compliant fastening solutions that meet rigorous industry standards.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement. The shoulder diameter tolerance is -0.001" to 0", and shoulder length tolerance is 0" to 0.002", ensuring precise dimensional accuracy. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications.