S-94328A998 3/8"-16 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
- Exceptional load-bearing capacity with 140,000 psi tensile strength and Rockwell C30 hardness for reliable performance in demanding applications
- Superior corrosion resistance through black oxide finish, extending service life in industrial environments
- Precision alignment and smooth rotation enabled by the 1/2" shoulder diameter with tight tolerance control
- Easy installation in confined spaces with low profile socket head and 1/4" hex drive design
- Secure thread engagement through Class 3A thread fit and UNC coarse thread pattern for vibration resistance
- Enhanced grip during manual adjustment with knurled head texture for better handling
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for global manufacturing requirements
Professional Applications & Engineering Value
This alloy steel shoulder screw delivers critical engineering solutions where precision alignment and high strength are paramount. The black oxide finish provides essential corrosion protection for industrial equipment, while the low profile socket head with 1/4" hex drive enables installation in space-constrained assemblies. The 3/8"-16 UNC coarse thread with Class 3A fit ensures secure fastening in high-vibration environments common to machinery, automation systems, and rotating assemblies. The precisely machined 1/2" shoulder diameter acts as a reliable bearing surface or pivot point, eliminating the need for additional bushings in precision mechanisms, reducing assembly complexity and maintenance requirements.
Specification Summary & Compliance
This shoulder screw features Class 3A thread fit with UNC thread standard and maintains critical dimensional tolerances including shoulder diameter (-0.004" to -0.002") and shoulder length (-0.005" to 0.005"). Manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental responsibility while delivering 140,000 psi tensile strength for industrial applications requiring reliable, heavy-duty fastening solutions.
