S-97345A171 10-24 ASME B18.3 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 in harsh environments thanks to 316 stainless steel construction
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
- Precise assembly and location enabled by the Class 3A thread fit and standard shoulder fit for minimal play
- Secure, non-slip fastening with a knurled head and hex socket drive for reliable torque application
- Optimized for high-volume production with coarse UNC threads for faster installation and reduced cross-threading risk
- Long-term reliability ensured by compliance with ASME B18.3 standards and RoHS/REACH environmental regulations
- Versatile shoulder design with a 1-7/8" length providing a stable pivot or bearing surface
Professional Applications & Engineering Value
This 316 Stainless Steel Shoulder Screw is engineered to solve critical challenges in industrial assembly and machinery. The 10-24 UNC coarse thread and Class 3A fit provide excellent engagement and vibration resistance, preventing loosening in dynamic equipment. The long, precision-machined shoulder acts as a reliable axle or spacer in linkages, pivots, and rotating assemblies, reducing wear on adjacent components. The knurled socket head ensures a firm grip during installation, even in greasy conditions. Its high tensile and shear strength makes it ideal for high-stress applications, while the corrosion-resistant 316 stainless steel ensures longevity in wet or chemically aggressive environments, from food processing to marine equipment.
Specification Summary & Compliance
This shoulder screw features a 10-24 UNC thread with a Class 3A fit for precise thread engagement. The shoulder diameter is 1/4" with a tight tolerance of -0.004" to -0.002", and the shoulder length is 1-7/8" with a tolerance of -0.005" to 0.005" for accurate positioning. It is manufactured to meet ASME B18.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances for global use.
