S-91054A100 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Enhanced wear and galling resistance from the TiCN coating, extending service life and reducing maintenance needs in high-friction applications.
• Precise alignment and positioning due to the exact 1/4" shoulder with tight tolerances (±0.003"), minimizing assembly errors and improving component fit.
• High tensile strength of 70,000 psi and Rockwell B55 hardness for dependable performance under heavy loads and stress.
• Secure and repeatable fastening with Class 2A thread fit and fine UNF threads, providing vibration resistance and consistent clamping force.
• Easy installation and removal using the standard hex socket drive, allowing for efficient assembly with common tools in confined spaces.
• Compliance with RoHS 3 and REACH regulations, ensuring environmental safety and suitability for global markets and sensitive industries.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment and durability challenges in industrial assemblies. The 18-8 stainless steel base material offers excellent corrosion resistance, while the TiCN coating significantly reduces wear in high-cycle applications like machinery pivots, conveyor systems, and precision instruments. The 1/4" shoulder length with minimal tolerance variations ensures components are held securely in place, preventing misalignment and reducing stress concentrations. With a fine UNF thread and Class 2A fit, it maintains tight fastening integrity even under vibration, making it ideal for automation equipment, aerospace components, and medical devices where reliability and precision are paramount.

Specification Summary & Compliance

This shoulder screw adheres to Class 2A thread fit standards for consistent engagement and features a precise shoulder diameter and length with tolerances of -0.002" to 0" and 0" to 0.003", respectively. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.