S-91273A209 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise component alignment with a 3" shoulder length and standard shoulder fit for reduced assembly errors
- High-strength performance delivering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Secure, non-slip installation thanks to the knurled head texture and hex socket drive for reliable torque transfer
- Wide compatibility with 3/8"-16 UNC coarse threads and Class 2A fit for easy integration into existing assemblies
- Enhanced durability with Rockwell B55 hardness, ensuring long-term reliability under mechanical stress
- Regulatory compliance meeting RoHS 3 and REACH standards for safe, environmentally conscious procurement
Professional Applications & Engineering Value
This 3/8"-16 UNC shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial machinery. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for applications in manufacturing, automotive, and outdoor equipment. The 3" shoulder length ensures precise positioning of moving parts, reducing wear and misalignment in pivots, linkages, and rotating assemblies. With a hex socket head and knurled texture, it offers secure installation even in high-vibration environments, while the coarse thread design facilitates quick assembly. Its high tensile and shear strength supports heavy-duty operations, delivering reliable performance where failure is not an option.
Specification Summary & Compliance
This shoulder screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent engagement. Dimensions include a shoulder diameter of 3/8" (tolerance: -0.004" to -0.002") and shoulder length of 3" (tolerance: -0.005" to 0.005"), ensuring precise manufacturing. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial supply chains.
