S-92012A517 4-40 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 strength and durability with 140,000 psi tensile strength and Rockwell C32 hardness, ideal for high-stress industrial applications.
- Corrosion-resistant black oxide finish enhances longevity and provides reliable performance in demanding environments.
- Precise shoulder dimensions with tight tolerances (1/8" diameter, 5/16" length) ensure accurate alignment and reduced assembly errors.
- Easy installation and removal thanks to the hex drive socket head design, allowing for efficient tool engagement in confined spaces.
- Wide compatibility with 4-40 UNC coarse threads and Class 2A fit, ensuring secure fastening and interchangeability in standard systems.
- Compliance with environmental standards including RoHS 3 and REACH, making it safe for various global industrial uses.
- Right-hand thread with coarse spacing facilitates quick assembly and disassembly, saving time in maintenance and production cycles.
Professional Applications & Engineering Value
This 4-40 UNC shoulder screw is engineered to address common industrial challenges such as misalignment and component wear. Crafted from high-strength alloy steel with a black oxide finish, it resists corrosion and extends service life in harsh conditions like machinery assemblies and automated systems. The precise shoulder fit and hex drive socket head enable exact positioning and easy access, reducing downtime during installations. Ideal for applications requiring reliable thread engagement and durability, it supports sectors from manufacturing to electronics, where consistent performance under load is critical. By incorporating coarse thread spacing and right-hand threading, it streamlines assembly processes, enhancing overall efficiency in B2B procurement and engineering projects.
Specification Summary & Compliance
This shoulder screw adheres to Class 2A thread fit and UNC standards for dimensional accuracy, with shoulder diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002". It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and reliability in industrial fastening applications.
