S-90337A446 10-32 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
• Precise alignment and smooth rotation ensured by the accurately machined 1-1/4" shoulder with tight diameter and length tolerances
• High strength and durability with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Reliable fine-thread engagement with 10-32 UNF threads and Class 2A fit, providing secure fastening in precision assemblies
• Space-saving low-profile socket head with hex drive for easy installation in confined spaces without compromising torque application
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe use in regulated industries
• Consistent performance through standardized manufacturing, ensuring repeatable results in automated or high-volume production

Professional Applications & Engineering Value

This low profile socket head shoulder screw is engineered to solve critical alignment challenges in precision machinery and industrial equipment. The 18-8 stainless steel material with passivated finish provides excellent corrosion resistance, extending service life in humid or chemically aggressive environments. The precisely machined 1-1/4" shoulder acts as a reliable pivot or spacer, maintaining accurate component positioning while reducing wear on moving parts. The 10-32 UNF fine threads with Class 2A fit ensure vibration-resistant fastening in applications ranging from optical mounts to automation systems. Its hex drive and low-profile head design facilitate installation in tight spaces where standard fasteners would interfere, making it ideal for precision instruments, robotics, and electronic enclosures requiring repeated disassembly.

Specification Summary & Compliance

This shoulder screw features 10-32 UNF fine threads with Class 2A thread fit for precise engagement, a shoulder diameter of 1/4" with tolerance from -0.001" to 0", and shoulder length of 1-1/4" with tolerance from 0" to 0.002". Manufactured from 18-8 stainless steel with passivated finish, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental safety and regulatory acceptance in global markets.