S-90318A301 8-32 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 316 Stainless Steel and passivated finish, ideal for harsh environments and extended service life.
- High-strength performance offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable load-bearing in demanding applications.
- Precise alignment and smooth rotation due to the accurately machined shoulder with minimal diameter and length tolerances.
- Easy installation and removal with a 3/32" hex drive and socket head design, providing secure torque transmission.
- Consistent thread engagement ensured by UNC coarse threads with Class 2A fit, reducing cross-threading risks.
- Compliance with environmental regulations including RoHS 3 and REACH, making it suitable for global industrial supply chains.
- Durable material properties with Rockwell B70 hardness, resisting wear and maintaining integrity under stress.
Professional Applications & Engineering Value
This 8-32 UNC shoulder screw is engineered to address critical needs in precision assemblies, such as in machinery, automotive, and electronics. The 316 Stainless Steel construction, combined with a passivated finish, provides exceptional resistance to corrosion and chemicals, reducing maintenance in humid or corrosive settings. The precise shoulder fit with tight tolerances ensures accurate component alignment, minimizing vibration and wear in rotating parts. Featuring a socket head and hex drive, it allows for easy access in confined spaces, streamlining installation in complex industrial systems. Its coarse thread spacing and Class 2A thread fit enhance reliability in high-vibration environments, making it a trusted choice for engineers seeking durability and compliance in industrial shoulder screws.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. Key specifications include a shoulder diameter of 3/16" with a tolerance of -0.001" to 0", and a shoulder length of 1/4" with a tolerance of 0" to 0.002" for precise assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for various industrial applications.
