S-94328A971 5/16"-18 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 for reliable performance in high-stress applications
- Superior wear resistance and corrosion protection thanks to the black oxide finish on alloy steel construction
- Precision alignment and smooth rotation ensured by the Class 3A thread fit and standard shoulder fit
- Easy installation in confined spaces with low-profile socket head and 3/16" hex drive design
- Enhanced grip during manual adjustment provided by the knurled head texture
- Reduced cross-threading risk with coarse UNC threading for faster assembly in industrial settings
- Compliance with global environmental standards including RoHS 3 and REACH for international supply chain compatibility
Professional Applications & Engineering Value
This alloy steel shoulder screw delivers critical engineering solutions where precise alignment and rotational stability are paramount. The black oxide finish provides corrosion resistance in demanding environments while maintaining dimensional accuracy. Engineered with Class 3A thread fit and coarse UNC threading, it prevents loosening under vibration and enables rapid assembly in automated equipment, machinery linkages, and precision jigs. The low-profile socket head with hex drive accommodates tight spaces while the standard shoulder fit ensures proper component spacing and reduces bearing surface wear. Ideal for robotics, automotive assemblies, and industrial machinery where 140,000 psi tensile strength and Rockwell C30 hardness maintain integrity under continuous operational stress.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit and UNC coarse threading (5/16"-18). Features include: 1/2" thread length, 3/4" shoulder length with ±0.005" tolerance, and 3/8" shoulder diameter with -0.004" to -0.002" tolerance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The alloy steel construction meets industrial strength requirements with verified mechanical properties.
