S-94496A480 1/4"-20 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 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance in high-stress applications.
- Enhanced corrosion resistance from zinc plating, extending service life in various industrial environments.
- Precise component alignment enabled by the smooth, accurately machined shoulder with tight diameter and length tolerances.
- Robust Rockwell B80 hardened steel construction ensures high durability and resistance to wear and deformation.
- Easy installation and removal with external hex drive and standard UNC coarse threads for efficient assembly.
- Consistent thread quality with Class 2A fit, providing reliable engagement and reducing cross-threading risks.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring suitability for global markets.
Professional Applications & Engineering Value
This shoulder screw is engineered to address critical alignment and pivot point requirements in machinery and assemblies. The 1-3/8" shoulder length with minimal tolerance variations provides a stable bearing surface for rotating components like gears, pulleys, and linkages, minimizing misalignment and reducing wear. Made from hardened steel and finished with zinc plating, it resists corrosion in demanding environments such as automotive, packaging, and conveyor systems. The UNC coarse thread and external hex drive facilitate quick installation, while the high tensile and shear strength ensures reliability under dynamic loads, making it ideal for precision industrial applications where durability and dimensional accuracy are paramount.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent performance. Dimensions include a shoulder diameter of 3/8" (tolerance: -0.004" to 0") and shoulder length of 1-3/8" (tolerance: -0.005" to 0.005"), ensuring precise assembly. It is manufactured to meet RoHS 3 (2015/863/EU) with exemption 6(a) and is REACH (EC 1907/2006) compliant, confirming its suitability for regulated industrial use.
