S-94035A227 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 from 18-8 stainless steel and passivated finish, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
- Precise alignment and smooth rotation ensured by the 1-1/4" shoulder with precise fit and smooth texture
- Reliable fastening performance with Class 2A thread fit and coarse UNC threads for quick assembly and vibration resistance
- Secure installation and removal using the 3/16" hex socket drive, preventing stripping in high-torque scenarios
- Environmental compliance assurance with RoHS 3 and REACH regulations, supporting sustainable manufacturing
- Broad compatibility with standard 5/16"-18 UNC coarse threads for versatile use across machinery and equipment
Professional Applications & Engineering Value
This socket head shoulder screw is engineered to address critical alignment and durability challenges in industrial settings. The 18-8 stainless steel construction, enhanced by a passivated finish, provides excellent resistance to rust and chemical exposure, making it suitable for automotive, machinery, and outdoor equipment. The 1-1/4" shoulder length with precise tolerances ensures accurate component positioning, reducing wear and misalignment in rotating assemblies like pivots, gears, and linkages. Combined with coarse UNC threads and a hex socket drive, it offers quick installation and high torque capability, minimizing downtime in production lines. Its 70,000 psi tensile strength supports heavy loads, ensuring long-term reliability in demanding applications.
Specification Summary & Compliance
This shoulder screw adheres to Class 2A thread fit and UNC coarse thread standards for consistent performance. Dimensions include a 5/16"-18 thread size, 1/2" thread length, and a shoulder diameter of 3/8" with tight tolerances (-0.001" to 0"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial reliability.
