S-94361A344 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 Tensile Strength: Withstands up to 140,000 psi, ensuring reliable performance in high-stress industrial applications.
- Superior Corrosion Resistance: Black Oxide finish protects against rust and wear, extending service life in harsh environments.
- Precision Thread Fit: Class 3A UNF fine thread ensures tight, secure fastening with minimal vibration loosening.
- Accurate Alignment: 3/8" shoulder diameter with tight tolerances provides stable positioning for components like gears and pulleys.
- Easy Installation and Removal: Hex socket drive with 3/16" size and knurled head allows for secure tool grip and efficient maintenance.
- High Durability: Alloy steel construction with Rockwell C32 hardness offers excellent resistance to deformation and fatigue.
- Regulatory Compliance: Meets RoHS 3 and REACH standards, ensuring safe use in various industrial sectors.
Professional Applications & Engineering Value
This alloy steel shoulder screw is engineered to address critical challenges in precision machinery, such as misalignment and component slippage. The 5/16"-24 UNF fine thread with Class 3A fit delivers superior holding power, reducing the risk of thread stripping in dynamic loads. Combined with the 3/8" shoulder diameter and tight tolerances, it ensures exact alignment in assemblies like rotating shafts, linkages, and bearing supports. The Black Oxide finish enhances corrosion resistance, making it ideal for automotive, aerospace, and manufacturing equipment exposed to moisture or chemicals. Its high tensile strength and knurled head provide reliable performance in high-vibration environments, minimizing downtime and maintenance costs.
Specification Summary & Compliance
This shoulder screw adheres to precise dimensional standards, including Class 3A thread fit for accurate engagement and a shoulder diameter tolerance of -0.004" to -0.002". It meets UNF fine thread specifications and is manufactured from alloy steel with a Rockwell C32 hardness. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a) and REACH (EC 1907/2006), it ensures environmental and safety standards for industrial use.
