S-97345A143 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 construction, ideal for harsh environments and extended service life.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high stress.
- Precise and secure fit with Class 3A thread fit, ensuring tight tolerances and reduced risk of loosening in assemblies.
- Enhanced grip and easy installation from the knurled socket head and 3/32" hex drive, preventing tool slippage.
- Robust durability with a Rockwell B79 hardness, providing excellent wear resistance and longevity.
- Regulatory compliance assurance meeting RoHS 3 and REACH standards, supporting global supply chain requirements.
- Versatile shoulder design with a standard 7/32" diameter and 3/8" length for precise component alignment and spacing.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial settings, such as corrosion from chemicals or moisture and mechanical failure under load. The UNC coarse thread and Class 3A fit provide fast, secure fastening with high vibration resistance, reducing maintenance needs in machinery, automotive, and electronics assemblies. The knurled socket head with a hex drive ensures easy installation even in tight spaces, while the shoulder acts as a precise pivot or spacer, enhancing alignment in rotating parts like bearings and pulleys. Its high tensile and shear strength makes it a reliable choice for demanding applications where safety and durability are paramount.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. Key tolerances include a shoulder diameter of -0.004" to -0.002" and length of -0.005" to 0.005". It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental and safety standards are upheld for industrial use.
