S-90337A489 5/16"-18 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 corrosion resistance with 18-8 stainless steel and TiCN coating, ideal for harsh industrial environments
- High tensile strength of 70,000 PSI ensures reliable performance under heavy loads and vibrations
- Precise shoulder fit with 1/2" shoulder length guarantees accurate alignment in assemblies, reducing wear and misalignment
- Low-profile socket head with hex drive allows for easy installation in tight spaces and secure torque application
- Class 2A thread fit with UNC coarse threads provides smooth engagement and consistent fastening in various materials
- Rockwell B55 hardness offers excellent durability and resistance to deformation over time
- Compliance with RoHS 3 and REACH regulations ensures safe, environmentally responsible use in global markets
Professional Applications & Engineering Value
This precision shoulder screw is engineered to address common challenges in industrial machinery, such as component misalignment and corrosion-induced failure. The 18-8 stainless steel core, enhanced by a TiCN coating, provides superior protection against rust and chemical exposure, extending service life in demanding settings like automotive assemblies and precision equipment. The 1/2" shoulder length and precise shoulder diameter tolerance ensure exact positioning for rotating parts, reducing friction and maintenance needs. With a right-hand UNC thread and hex drive, it simplifies installation while maintaining high tensile strength for secure, long-term fastening in high-stress applications.
Specification Summary & Compliance
This shoulder screw adheres to Class 2A thread fit standards with UNC coarse threads, ensuring dimensional accuracy and compatibility. The shoulder diameter and length are manufactured to tight tolerances (e.g., shoulder diameter: -0.001" to 0", shoulder length: 0" to 0.002") for precise assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for industrial use without hazardous substances.
