S-94361A363 3/8"-24 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 corrosion resistance thanks to the black oxide finish, extending service life in demanding environments
- Precision thread engagement with Class 3A fit and UNF fine threads ensuring secure, vibration-resistant fastening
- Enhanced grip and torque application through the knurled socket head with 1/4" hex drive for easy installation
- Accurate component alignment provided by the 1/2" shoulder diameter with tight tolerances for consistent positioning
- Long-term durability from Rockwell C32 hardness alloy steel construction resisting wear and deformation
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use
Professional Applications & Engineering Value
This alloy steel shoulder screw delivers critical engineering solutions where precision alignment and high strength are paramount. The Class 3A thread fit combined with UNF fine threads prevents loosening under vibration in machinery, automation systems, and precision equipment. The black oxide finish provides essential corrosion protection in industrial environments while maintaining dimensional stability. With its knurled socket head and 1/4" hex drive, installation torque is efficiently transferred without slippage. The precisely machined shoulder diameter serves as a reliable locating surface in assemblies, eliminating the need for additional alignment components and reducing manufacturing complexity in applications ranging from rotating shafts to precision guides.
Specification Summary & Compliance
This shoulder screw maintains Class 3A thread fit per UNF standards with shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) compliance as of 01/17/2023. The combination of 140,000 psi tensile strength and Rockwell C32 hardness ensures consistent performance under mechanical stress.
