S-91327A280 5/8"-11 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
- Vibration-resistant locking with integrated nylon patch maintains secure connections in demanding environments from -50° to 250°F
- Exceptional corrosion resistance through 18-8 stainless steel construction and passivated surface treatment for extended service life
- Precision thread engagement with Class 3A UNC coarse threads ensuring reliable fastening and consistent performance
- High-load capacity with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty industrial applications
- Secure installation and removal facilitated by knurled head texture and standard 1/4" hex drive socket
- Accurate component alignment through precision-machined 2" shoulder with tight diameter and length tolerances
- Regulatory compliance assurance meeting RoHS 3 and REACH environmental standards for global industrial use
Professional Applications & Engineering Value
This 5/8"-11 UNC shoulder screw delivers critical engineering solutions where vibration resistance and precision alignment are paramount. The 18-8 stainless steel construction with passivated finish provides superior corrosion protection in harsh environments, while the integrated nylon patch thread locker prevents loosening under dynamic loads. The Class 3A thread fit ensures precise engagement in machinery, automation systems, and rotating assemblies where positional accuracy is critical. The 2" shoulder length with tight tolerances enables exact component spacing and pivot point applications, making it ideal for precision equipment, industrial machinery, and automotive assemblies requiring reliable, maintenance-free performance.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit and UNC coarse thread profile (5/8"-11). Features precision shoulder dimensions: 3/4" diameter (-0.004" to -0.002" tolerance) and 2" length (-0.005" to 0.005" tolerance). Constructed from 18-8 stainless steel with passivated finish and nylon patch thread locking technology. Mechanical properties include 70,000 psi tensile strength and Rockwell B55 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial applications.
