S-94361A138 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 of 140,000 psi ensures reliable performance in high-stress applications, reducing the risk of mechanical failure.
- Superior corrosion resistance from the black oxide finish extends service life in harsh industrial environments, minimizing maintenance needs.
- Precise Class 3A thread fit guarantees tight, secure fastening with fine UNF threads, ideal for vibration-resistant assemblies.
- Knurled socket head design provides enhanced grip for easy installation and removal, even in confined spaces.
- Alloy steel construction with Rockwell C32 hardness offers excellent durability and wear resistance for long-term use.
- Accurate shoulder diameter and length tolerances enable consistent positioning and alignment in machinery and fixtures.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards.
Professional Applications & Engineering Value
This alloy steel shoulder screw is engineered to address critical challenges in precision assembly and high-load scenarios. The black oxide finish provides a protective layer against rust and corrosion, making it suitable for automotive, aerospace, and manufacturing equipment exposed to moisture or chemicals. The fine UNF threads and Class 3A fit deliver superior clamping force and vibration resistance, preventing loosening in dynamic applications. With a knurled socket head, installation is streamlined, reducing tool slippage and assembly time. Ideal for use in jigs, pivots, and rotating mechanisms, this screw ensures reliable shoulder positioning and alignment, enhancing overall system accuracy and reducing downtime.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit with precise dimensions, including a shoulder diameter of 3/8" (tolerance: -0.004" to -0.002") and shoulder length of 1 1/2" (tolerance: -0.005" to 0.005"). It adheres to UNF thread standards and is manufactured from high-strength alloy steel. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.
