S-8077A118 3/4"-10 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
- High-strength reliability with 70,000 psi tensile strength and 35,000 psi shear strength, ensuring secure fastening under heavy loads
- Precise alignment and smooth rotation thanks to the 1" shoulder diameter and 8" shoulder length with tight tolerances
- Easy installation and removal with a knurled socket head and 1/2" hex drive, offering superior grip and torque application
- Accurate thread engagement from Class 3A UNC coarse threads, reducing cross-threading risks in high-vibration applications
- Compliance with industry standards including ASME B18.3 and RoHS/REACH, ensuring safety and regulatory adherence
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, making it suitable for humid or chemically aggressive settings like marine equipment or food processing plants. Its UNC coarse thread and Class 3A fit provide reliable fastening in high-stress assemblies, while the 8-inch shoulder length ensures precise pivot points in rotating mechanisms, reducing friction and extending service life. Ideal for use in industrial fasteners for conveyors, automotive jigs, and robotic arms, it delivers consistent performance where durability and precision are paramount.
Specification Summary & Compliance
This shoulder screw maintains tight dimensional tolerances, including a shoulder diameter of 1" (-0.004" to -0.002") and shoulder length of 8" (-0.005" to 0.005"), with Class 3A thread fit for superior accuracy. It adheres to ASME B18.3 manufacturing standards and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
