S-94361A311 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
- Exceptional durability and strength with 140,000 psi tensile strength and Rockwell C32 hardness, ideal for high-stress industrial applications.
- Superior corrosion resistance thanks to the black oxide finish, extending service life in harsh environments.
- Precise alignment and spacing enabled by the 1/4" shoulder diameter and standard shoulder fit, reducing assembly errors.
- Reliable, fine-thread engagement with Class 3A thread fit for secure fastening and vibration resistance in machinery.
- Easy installation and removal using a standard 1/8" hex drive and knurled socket head, improving maintenance efficiency.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in global markets.
- Right-hand UNF fine threads provide excellent holding power in materials requiring fine-pitch fasteners.
Professional Applications & Engineering Value
This 10-32 UNF alloy steel shoulder screw is engineered to address critical alignment and load-bearing challenges in precision assemblies. The black oxide finish offers enhanced corrosion resistance, making it suitable for automotive, aerospace, and heavy machinery applications where exposure to moisture and chemicals is common. The Class 3A thread fit and fine thread spacing ensure tight, reliable connections that resist loosening under vibration, reducing maintenance downtime. With a robust shoulder diameter of 1/4 inch and controlled tolerances, it provides accurate positioning for gears, bearings, and linkages, improving overall system performance and longevity in demanding industrial environments.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit and UNF thread standards, with precise shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005" for consistent performance. It meets RoHS 3 (2015/863/EU) with exemption 6(a) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory acceptance in industrial supply chains.
