S-91273A733 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 from 18-8 stainless steel construction, ideal for harsh industrial environments and washdown applications.
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high-stress conditions.
- Precise location and pivot point provided by the 1-1/4" shoulder with tight diameter and length tolerances for accurate component alignment.
- Secure and high-torque installation enabled by the 3/16" hex socket drive and knurled head, preventing tool slippage.
- Wide compatibility and easy assembly with standard 3/8"-16 UNC coarse threads and Class 2A fit, ensuring interchangeability.
- Enhanced durability with a Rockwell B55 hardness, offering excellent wear resistance for long service life.
- Compliance with global regulations including RoHS 3 and REACH, making it suitable for international supply chains.
Professional Applications & Engineering Value
This 18-8 Stainless Steel Shoulder Screw is engineered to solve critical alignment and pivot challenges in precision machinery. The 1-1/4" shoulder with its controlled diameter and length tolerances acts as a precise axle or spacer, eliminating misalignment in assemblies like rotating shafts, linkages, and gears. The 3/8"-16 UNC coarse thread and Class 2A fit provide robust holding power and rapid assembly, while the hex socket drive allows for high-torque installation in confined spaces. Made from corrosion-resistant 18-8 stainless steel, it withstands corrosive environments in food processing, packaging, and automotive applications, reducing maintenance downtime and ensuring long-term operational reliability.
Specification Summary & Compliance
This shoulder screw features a 3/8"-16 UNC thread with a Class 2A fit for standard interchangeability. The shoulder maintains a diameter tolerance of -0.004" to -0.002" and a length tolerance of -0.005" to 0.005" for precision applications. Manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.
