S-97345A313 5-40 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
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
- High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing in demanding assemblies.
- Precise thread engagement with Class 3A fit and UNC coarse thread, ensuring secure fastening and vibration resistance.
- Easy installation and removal via the hex socket drive (3/32") and knurled head, providing excellent grip and torque application.
- Durable shoulder design with controlled diameter and length tolerances for accurate alignment and pivot functions.
- Consistent performance backed by Rockwell B79 hardness, maintaining integrity under repeated use.
- Environmental compliance meeting RoHS 3 and REACH standards, safe for various industrial and electronic applications.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and corrosion-induced failure. The UNC coarse thread with Class 3A fit ensures rapid, secure fastening in materials where fine threads may strip, while the knurled head and hex drive facilitate easy handling in confined spaces. Its high tensile and shear strength makes it suitable for pivots, spacers, and rotating mechanisms in machinery, automotive, and marine environments, where corrosion resistance and durability are paramount. The precisely machined shoulder provides stable bearing surfaces, reducing wear and maintenance in dynamic applications.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A precision fit for tight tolerances. Dimensions include a 5-40 thread size, 3/16" thread length, and shoulder diameter of 5/32" with tolerances from -0.004" to -0.002". It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability in industrial use.
