S-97832A255 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear capacity for heavy-duty applications
- Precise Class 3A thread fit ensures reliable engagement and vibration resistance in critical assemblies
- Knurled socket head with 3/8" hex drive provides secure tool grip and prevents slipping during installation
- Standardized shoulder dimensions maintain consistent alignment and bearing surface for rotating components
- Full compliance with ASME B18.3 specifications guarantees interchangeability and engineering reliability
- Environmental regulation compliance meets RoHS 3 and REACH standards for global manufacturing use
Professional Applications & Engineering Value
This 18-8 stainless steel shoulder screw delivers critical performance in precision mechanical systems where alignment accuracy and corrosion resistance are paramount. The 5/8"-11 UNC coarse thread provides rapid assembly in high-volume production while maintaining Class 3A thread fit for vibration-resistant fastening. The knurled socket head with 3/8" hex drive ensures positive tool engagement in confined spaces, reducing installation time and preventing damage to the drive feature. Engineered to ASME B18.3 standards, these shoulder screws serve as precise axles, pivots, and spacers in machinery, automotive, and industrial equipment applications where dimensional stability under load is essential.
Specification Summary & Compliance
Manufactured to exacting tolerances with Class 3A thread fit and shoulder diameter tolerance of -0.004" to -0.002". The UNC coarse thread (5/8"-11) follows standardized threading specifications. Compliant with ASME B18.3 for dimensional consistency, RoHS 3 (2015/863/EU) for hazardous substance restriction, and REACH (EC 1907/2006) for chemical safety compliance. Mechanical properties include Rockwell B55 hardness and minimum 70,000 psi tensile strength.
