S-97768A410 3/8"-16 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 with 18-8 stainless steel construction and black oxide finish for extended service life in harsh environments
- Exceptional load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Precision alignment and positioning ensured by tight shoulder diameter tolerance (-0.004" to -0.002") and Class 3A thread fit
- Enhanced installation control through knurled socket head design providing superior grip with hex drive
- Reliable coarse thread engagement with UNC 3/8"-16 threading for faster assembly and reduced cross-threading risk
- Consistent performance standards meeting ASME B18.3 specifications for dimensional accuracy and quality
- Environmental compliance assurance with RoHS 3 and REACH regulations for safe industrial use
Professional Applications & Engineering Value
This 3/8"-16 UNC shoulder screw delivers critical engineering solutions where precise component alignment and rotational movement are paramount. The 1/2" shoulder diameter with controlled tolerance provides exact bearing surfaces for gears, pulleys, and linkages, eliminating misalignment issues in automated machinery and precision equipment. Manufactured from 18-8 stainless steel with black oxide finish, it resists corrosion in manufacturing environments while maintaining Rockwell B55 hardness for durability. The knurled socket head with hex drive ensures secure tool engagement during installation, preventing slippage in high-torque applications. These features make it ideal for robotics, conveyor systems, and industrial automation where reliability and precision are non-negotiable.
Specification Summary & Compliance
This shoulder screw maintains Class 3A thread fit with UNC 3/8"-16 coarse threading and precise shoulder diameter tolerance of -0.004" to -0.002". Manufacturing complies with ASME B18.3 standards for dimensional consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors.
