S-91273A255 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Precision alignment and smooth rotation thanks to the 1 3/4" shoulder with tight diameter and length tolerances
- Secure installation and removal with knurled hex socket head providing superior grip and torque transmission
- Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent fastening performance
- Durable performance backed by Rockwell B55 hardness for long service life under mechanical stress
- Environmental compliance meeting RoHS 3 and REACH regulations for safe use across industries
Professional Applications & Engineering Value
This 5/8"-11 UNC shoulder screw delivers critical engineering solutions where precise alignment and high strength are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance, making it suitable for machinery, automation systems, and outdoor equipment exposed to moisture and chemicals. The 1 3/4" shoulder length with controlled tolerances ensures accurate component positioning in assemblies, reducing wear and vibration in rotating mechanisms. The hex socket drive with knurled texture enables secure tool engagement in confined spaces, while the coarse UNC threads facilitate quick assembly in production environments. These features combine to solve common industrial challenges including misalignment, component slippage, and fastener failure under heavy loads.
Specification Summary & Compliance
This shoulder screw features Class 2A thread fit with UNC coarse threading (5/8"-11) and maintains precise shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". Manufactured to industry standards for dimensional accuracy, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring restricted substance compliance.
