S-8077A539 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
- Exceptional mechanical strength with 70,000 psi tensile strength and 35,000 psi shear strength for reliable load-bearing applications
- Precise thread engagement featuring Class 3A fit and UNC coarse threads for secure fastening and vibration resistance
- Enhanced grip and torque application through knurled socket head design with 3/8" hex drive
- Accurate shoulder positioning with controlled diameter and length tolerances for consistent component alignment
- Industry-standard compliance meeting ASME B18.3 specifications for guaranteed interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw delivers critical performance advantages in demanding industrial applications where precision alignment and corrosion resistance are paramount. The black oxide finish provides additional surface protection while maintaining dimensional stability, making it ideal for machinery assemblies, rotating components, and precision instruments. The Class 3A thread fit ensures minimal backlash in high-vibration environments, while the knurled socket head design prevents tool slippage during installation. Engineers specify this shoulder screw for its reliable shoulder diameter control, which maintains accurate component positioning in automated equipment, conveyor systems, and manufacturing jigs where repetitive accuracy is essential.
Specification Summary & Compliance
This precision shoulder screw features 5/8"-11 UNC coarse threads with Class 3A fit tolerance, 1" knurled head diameter, and 1-3/4" shoulder length with controlled tolerances. Manufactured to ASME B18.3 specifications with Rockwell B79 hardness, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards for industrial use.
