S-8077A458 10-24 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 and black oxide finish, ideal for harsh industrial environments
- Precise alignment and reduced wear thanks to Class 3A thread fit and standard shoulder fit for stable component positioning
- High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
- Easy installation and removal with hex socket drive and knurled head for secure tool grip
- Reliable performance in automated systems due to right-hand UNC coarse threads and consistent shoulder dimensions
- Long-term durability ensured by Rockwell B79 hardness and robust material properties
- Compliance with industry standards including ASME B18.3, RoHS, and REACH for quality assurance
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, such as misalignment and component wear. The black oxide finish enhances corrosion resistance in moist or chemical-exposed settings, while the Class 3A thread fit and UNC coarse threads ensure secure fastening in high-vibration environments like robotics, conveyor systems, and automotive assemblies. The knurled head and hex drive facilitate quick maintenance, reducing downtime in production lines. With a 70,000 psi tensile strength, it supports heavy-duty applications without compromising on the precision shoulder functionality that guarantees accurate part positioning.
Specification Summary & Compliance
This shoulder screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for tight tolerances. Key dimensions include a 10-24 UNC thread with 3/8" length, 1/4" shoulder diameter, and 9/16" shoulder length, all manufactured to precise tolerances (e.g., shoulder diameter tolerance of -0.004" to -0.002"). It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability for industrial use.
