S-8077A546 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 316 Stainless Steel construction and Black Oxide finish, ideal for harsh industrial environments
- Precise component alignment through a 3/4" shoulder diameter with tight tolerance control for stable rotational movement
- High load-bearing capacity delivering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Secure installation and removal with knurled socket head and 3/8" hex drive preventing tool slippage
- Reliable thread engagement with Class 3A UNC coarse threads ensuring consistent fastening performance
- Extended service life with Rockwell B79 hardness providing excellent wear resistance
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
This 5/8"-11 UNC shoulder screw delivers exceptional engineering value in precision assemblies requiring exact component positioning and rotational stability. The 316 Stainless Steel material combined with Black Oxide finish provides superior corrosion resistance for applications in chemical processing, marine equipment, and food machinery where environmental exposure is a concern. The 4 3/4" shoulder length with controlled tolerances enables precise spacing between components, while the knurled socket head with 3/8" hex drive ensures secure tool engagement during installation in confined spaces. These heavy-duty shoulder screws solve critical alignment challenges in rotating assemblies, pivot mechanisms, and precision machinery where dimensional accuracy and corrosion resistance are paramount for operational reliability.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit for superior thread engagement and UNC coarse threading (5/8"-11) for efficient assembly. Shoulder diameter tolerance maintained at -0.004" to -0.002" with shoulder length tolerance of -0.005" to 0.005" ensuring precise component alignment. Full compliance with ASME B18.3 specifications, RoHS 3 (2015/863/EU) compliance, and REACH (EC 1907/2006) environmental standards for global manufacturing applications.
