S-91054A481 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Enhanced wear and galling resistance from TiCN coating, extending service life in high-friction applications.
• Superior strength and durability with a tensile strength of 70,000 psi and Rockwell B55 hardness for reliable load-bearing performance.
• Precise component alignment ensured by the accurately machined shoulder with tight diameter and length tolerances.
• Easy installation and removal using a standard 3/32" hex drive, providing secure torque transmission.
• Wide compatibility with 8-32 UNC coarse threads and Class 2A fit, ensuring consistent engagement in various assemblies.
• Compliance with global regulations including RoHS 3 and REACH, making it suitable for international markets and sensitive applications.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision machinery, automation systems, and fixturing applications. The 18-8 stainless steel base material offers excellent corrosion resistance, while the TiCN coating significantly reduces wear in high-cycle operations, preventing seizing and extending maintenance intervals. The precise shoulder diameter and length provide accurate locating and spacing for components such as gears, bearings, and linkages, minimizing vibration and misalignment. With a right-hand coarse thread and Class 2A fit, it ensures quick assembly and reliable fastening in demanding industrial environments, enhancing overall equipment reliability and reducing downtime.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement. The shoulder features precise dimensions: diameter of 3/16" (tolerance: -0.002" to 0") and length of 1/2" (tolerance: 0" to 0.003"). Manufactured from 18-8 stainless steel with a tensile strength of 70,000 psi and Rockwell B55 hardness, it meets rigorous performance criteria. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.