S-91054A120 10-32 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior 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.
- Precise component alignment ensured by the smooth, accurately machined shoulder with tight diameter and length tolerances.
- High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing capability.
- Secure, reliable fastening provided by the 10-32 UNF fine thread with Class 2A fit, minimizing loosening under vibration.
- Easy installation and removal using a standard 1/8" hex key, accessible in confined spaces with the socket head design.
- Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
This precision shoulder screw is engineered to solve critical alignment and durability challenges in industrial applications. The 18-8 stainless steel base material provides excellent resistance to rust and corrosion, while the TiCN coating significantly reduces wear and friction in moving assemblies, such as pivots, gears, and linkages. The 10-32 UNF fine thread offers superior holding power in softer materials or where vibration resistance is paramount. The precisely machined shoulder acts as a built-in spacer or bearing surface, eliminating the need for additional components and reducing assembly time. This makes it an ideal choice for machinery, automation systems, and precision instruments where reliable performance and long-term durability are essential.
Specification Summary & Compliance
This shoulder screw features a Class 2A thread fit for consistent, reliable engagement and a precise shoulder with diameter tolerance of -0.002" to 0" and length tolerance of 0" to 0.003". It conforms to UNF thread standards and is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of hazardous substances for use in various industrial and international markets.
