S-94361A354 3/8"-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 of 140,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Precision Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in dynamic environments.
- Black oxide finish offers enhanced corrosion resistance, extending service life in harsh industrial conditions.
- Knurled socket head allows for secure tool grip and easy installation, even in confined spaces with standard hex drivers.
- Alloy steel construction with Rockwell C32 hardness delivers excellent durability and wear resistance for long-term use.
- Fine UNF threads enable precise adjustments and higher load distribution compared to coarse threads.
- RoHS and REACH compliance ensures environmental and safety standards are met, supporting global supply chain requirements.
Professional Applications & Engineering Value
This alloy steel shoulder screw is engineered to address critical challenges in precision assemblies, such as aligning components in machinery, automotive systems, and robotics. The 3/8"-24 UNF fine thread and Class 3A fit provide tight tolerances that prevent backlash and maintain alignment under vibration, while the black oxide finish resists rust in humid or corrosive environments. The 1/2" shoulder diameter acts as a precise pivot or spacer, reducing wear on moving parts. Ideal for high-strength applications like conveyor systems and tooling fixtures, it ensures reliable performance where durability and dimensional accuracy are paramount.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit per UNF standards, ensuring high precision and interchangeability. Key dimensions include a shoulder diameter of 1/2" with a tolerance of -0.004" to -0.002" and shoulder length of 11/16" with tolerance of -0.005" to 0.005". It complies with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel and REACH (EC 1907/2006) regulations, confirming its suitability for regulated industrial markets.
