S-8077A258 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 with minimal maintenance
- High-strength reliability offering 70,000 psi tensile strength and 35,000 psi shear strength for demanding mechanical applications
- Precise alignment and smooth rotation ensured by the standard shoulder fit and Class 3A thread accuracy
- Secure, non-slip installation with the knurled socket head and 7/8" hex drive for easy torque application
- Quick assembly efficiency thanks to UNC coarse threads that reduce cross-threading risks in high-vibration settings
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for safe, global industrial use
Professional Applications & Engineering Value
Engineered for precision and endurance, this 316 stainless steel shoulder screw with black oxide finish addresses critical challenges in heavy machinery, automation systems, and assembly lines. The UNC coarse thread design ensures rapid installation and reliable holding power in high-vibration environments, reducing downtime. Its knurled socket head and robust hex drive facilitate secure tightening, preventing tool slippage during maintenance. The shoulder diameter provides exact component alignment, minimizing wear on moving parts. Ideal for industrial applications requiring corrosion resistance and high tensile strength, this fastener delivers consistent performance in manufacturing, marine, and chemical processing sectors.
Specification Summary & Compliance
This shoulder screw maintains precise dimensional tolerances, including a Class 3A thread fit for superior engagement and a shoulder diameter tolerance of -0.004" to -0.002". It adheres to ASME B18.3 manufacturing specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for industrial use.
