S-8077A747 1/2"-13 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, ideal for harsh industrial environments and extended service life
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high-stress conditions
- Precise alignment and reduced wear with a knurled head and standard shoulder fit, ensuring stable component positioning
- Enhanced durability and minimal galling from the black oxide finish, providing added surface protection
- Secure, high-tolerance fastening with Class 3A thread fit and UNC coarse threads for vibration resistance and easy assembly
- Efficient installation and removal using a 5/16" hex drive socket head, suitable for high-torque applications
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring quality and environmental safety
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical industrial challenges, such as misalignment and component wear in machinery. The black oxide finish enhances corrosion resistance, while the UNC coarse threads and Class 3A thread fit provide secure, vibration-resistant fastening in dynamic applications. Its knurled head improves grip during installation, and the precise shoulder diameter and length ensure accurate positioning in assemblies like pivots, gears, and linkages. Ideal for industrial equipment, automotive systems, and marine environments, this screw delivers reliable performance, reduced maintenance, and long-term cost savings by minimizing downtime and part replacement.
Specification Summary & Compliance
This shoulder screw features a 1/2"-13 UNC thread with Class 3A fit for high precision, a shoulder diameter of 5/8" with tight tolerance, and a shoulder length of 1-1/2". Manufactured to ASME B18.3 specifications, it ensures dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental and safety standards in global industrial supply chains.
