S-92944A129 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise alignment and pivot functionality thanks to the 3/8" shoulder diameter with tight tolerances
- High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Reliable, secure fastening ensured by the Class 3A thread fit and coarse UNC thread for vibration resistance
- Easy installation and removal with the 7/32" hex drive, providing excellent torque transmission
- Durable, long-lasting operation backed by Rockwell B55 hardness for excellent wear resistance
- Environmental compliance with RoHS 3 and REACH standards for global market acceptance
Professional Applications & Engineering Value
This shoulder screw is engineered to solve critical alignment and pivot challenges in industrial machinery. The 18-8 stainless steel construction provides exceptional corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or outdoor elements. The 3/8" shoulder diameter with precise tolerances ensures accurate component positioning in assemblies, while the Class 3A thread fit and coarse UNC thread maintain secure fastening even under vibration and dynamic loads. The flat head design with standard countersink angle allows for flush mounting in precision equipment, and the hex drive enables efficient installation in confined spaces. These features make it ideal for use in pivoting mechanisms, mounting systems, and precision alignment applications across various industries.
Specification Summary & Compliance
This shoulder screw features a 5/16"-18 UNC coarse thread with Class 3A fit for precise thread engagement and a 1/2" thread length. The shoulder maintains a 3/8" diameter with tight tolerances (-0.004" to -0.002") and 3/8" length with -0.005" to 0.005" tolerance. Manufactured from 18-8 stainless steel with Rockwell B55 hardness, 70,000 psi tensile strength, and 35,000 psi minimum shear strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards.
