S-94035A181 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and passivated finish, ideal for harsh or washdown environments.
• Precise alignment and pivot function due to the smooth, accurately machined shoulder with minimal diameter and length tolerances.
• High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing in demanding applications.
• Secure and flush installation enabled by the standard socket head with a 1/8" hex drive, preventing cam-out and offering a clean profile.
• Consistent and reliable threading with a Class 2A fit 10-32 UNF fine thread, ensuring smooth engagement and vibration resistance.
• Compliance with global standards, including RoHS 3 and REACH, ensuring material safety and suitability for regulated industries.
• Optimized for automated assembly with right-hand fine threads and a smooth head texture for efficient driving and handling.

Professional Applications & Engineering Value

This 10-32 UNF shoulder screw is engineered to solve critical alignment and wear challenges in precision assemblies. The 18-8 Stainless Steel construction, enhanced by a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it suitable for food processing, medical devices, and outdoor equipment. The precise shoulder acts as a dependable datum for locating parts like gears, bearings, and linkages, eliminating misalignment and reducing eccentric loads that cause premature failure. Its Class 2A thread fit and fine thread spacing ensure tight, secure fastening in applications subject to vibration, such as robotics, conveyor systems, and precision instrumentation. By integrating a robust socket head design, it allows for high-torque installation in confined spaces, streamlining maintenance and improving overall assembly integrity.

Specification Summary & Compliance

This shoulder screw adheres to UNF thread standards with a Class 2A thread fit for consistent, precise engagement. The shoulder features a diameter of 1/4" with a tolerance of -0.001" to 0" and a length of 7/16" with a tolerance of 0" to 0.002", ensuring exact positioning. It is manufactured from 18-8 Stainless Steel with a passivated finish and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for environmentally conscious and regulated industrial applications.