S-8077A264 1 1/8"-7 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 chemical exposure
- Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance and reduced maintenance
- Precise alignment and smooth rotation ensured by the 1 1/2" shoulder with standard fit, minimizing component wear
- High-strength performance with 70,000 psi tensile and 35,000 psi shear strength, reliably handling heavy loads and stress
- Secure, non-slip installation thanks to the knurled head and 7/8" hex drive, allowing for high-torque applications
- Accurate and reliable threading with Class 3A fit and coarse 1 1/8"-7 UNC thread, ensuring consistent engagement and vibration resistance
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing safety and regulatory adherence
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in demanding industrial settings, such as machinery assembly, automotive systems, and precision equipment. The black oxide finish not only enhances corrosion resistance but also reduces friction, extending the lifespan of moving parts. With a 1 1/2" shoulder length and precise Class 3A thread fit, it provides stable alignment for rotating components like bearings and pulleys, preventing misalignment and reducing wear. The coarse UNC thread and knurled socket head ensure quick, secure installation in high-vibration environments, making it a reliable choice for heavy-duty industrial applications where strength and durability are paramount.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit with a 1 1/8"-7 UNC coarse thread and a shoulder diameter tolerance of -0.004" to -0.002" for precise engineering. It is manufactured in compliance with ASME B18.3 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and quality for global industrial use.
