S-97832A258 5/8"-11 ASME B18.3 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 construction, ensuring long-term reliability in harsh industrial environments.
- High tensile strength of 70,000 psi provides superior load-bearing capacity for heavy-duty applications.
- Precision shoulder diameter tolerance (-0.004" to -0.002") guarantees exact fit and alignment in assemblies, reducing wear and misalignment.
- Class 3A thread fit offers tighter tolerances for secure, vibration-resistant fastening in critical machinery.
- Knurled head with hex drive allows for easy installation and removal, even in tight spaces, improving maintenance efficiency.
- Compliance with ASME B18.3, RoHS 3, and REACH ensures adherence to industry standards and environmental safety regulations.
- Coarse UNC threads enable quick assembly and disassembly, saving time in production and repair cycles.
Professional Applications & Engineering Value
This 5/8"-11 UNC shoulder screw is engineered to address common industrial challenges like component misalignment and vibration-induced loosening. Made from 18-8 stainless steel, it resists corrosion in demanding settings such as manufacturing equipment, automotive assemblies, and machinery frames. The precision shoulder diameter with tight tolerances ensures stable pivoting or spacing, minimizing part movement and extending service life. Its socket head with hex drive and knurled texture facilitates secure tool engagement, reducing slippage during installation. Ideal for applications requiring reliable rotational or axial support, this screw delivers consistent performance in heavy-duty fastening scenarios, backed by high tensile and shear strength to withstand dynamic loads.
Specification Summary & Compliance
The screw features a Class 3A thread fit for precise engagement, with UNC coarse threads and right-hand direction. Dimensions include a shoulder diameter of 3/4" (tolerance: -0.004" to -0.002") and shoulder length of 1 5/8" (tolerance: -0.005" to 0.005"), ensuring accuracy in assembly. It complies with ASME B18.3 manufacturing standards, RoHS 3 (2015/863/EU) for hazardous substance restrictions, and REACH (EC 1907/2006) for chemical safety, meeting rigorous industrial and regulatory requirements.
