S-97345A305 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 industrial environments and chemical exposure.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high-stress applications.
- Enhanced grip and tool engagement from the knurled hex socket head, preventing slippage during installation and removal.
- Precise thread fit and alignment with Class 3A UNC coarse threads, ensuring secure fastening and reduced risk of cross-threading.
- Accurate shoulder positioning with tight diameter and length tolerances, providing stable support for rotating components.
- Compliance with environmental regulations including RoHS 3 and REACH, making it suitable for global industrial supply chains.
- Durable and long-lasting performance with a Rockwell B79 hardness, maintaining integrity through repeated use.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address common challenges in precision assembly and machinery. The 5-40 UNC coarse thread and Class 3A fit provide excellent vibration resistance and ease of installation in automated equipment, while the knurled hex socket head ensures secure tool engagement, reducing downtime in maintenance. The shoulder design offers precise axial location for bearings, pulleys, and linkages, minimizing wear and misalignment. Ideal for industrial applications in manufacturing, automotive, and electronics, where high tensile strength and corrosion resistance are critical for longevity and reliability.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for high precision. Shoulder diameter tolerance is -0.004" to -0.002", and shoulder length tolerance is -0.005" to 0.005", ensuring consistent performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting stringent environmental and safety requirements for industrial components.
