S-94361A139 5/16"-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 and reduced light reflection thanks to the durable black oxide finish
- Precise thread engagement and vibration resistance achieved with Class 3A UNF fine threads
- Secure, non-slip installation enabled by the knurled socket head and 3/16" hex drive
- Accurate component alignment and spacing provided by the 3/8" diameter, 2" long shoulder with tight tolerances
- Enhanced durability and wear resistance from the Rockwell C32 hardened alloy steel construction
- Compliance with global environmental standards including RoHS 3 and REACH for safe industrial use
Professional Applications & Engineering Value
This alloy steel shoulder screw is engineered to solve critical alignment and high-load challenges in industrial machinery. The Class 3A UNF fine thread ensures secure fastening in vibrating environments, while the 2" shoulder length with precise diameter tolerances provides exact component spacing in assemblies like rotating shafts, pivots, and gear mechanisms. The black oxide finish not only enhances corrosion resistance but also minimizes galling during installation. With its knurled socket head and high tensile strength, this screw delivers reliable performance in automotive, aerospace, and heavy equipment applications where precision and durability are paramount.
Specification Summary & Compliance
This shoulder screw features Class 3A thread fit per UNF standards, ensuring precise thread engagement. The shoulder maintains a diameter of 3/8" with tolerance of -0.004" to -0.002" and length of 2" with tolerance of -0.005" to 0.005" for accurate assembly. Manufactured from alloy steel with Rockwell C32 hardness, it meets rigorous mechanical demands. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety for industrial use.
