S-8077A429 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 construction, ideal for harsh environments and chemical exposure
- Exceptional mechanical strength delivering 70,000 psi tensile and 35,000 psi shear strength for heavy-duty applications
- Precise shoulder positioning with controlled diameter and length tolerances ensuring accurate alignment and reduced assembly time
- Enhanced grip and tool engagement from the knurled head and standard hex socket drive, preventing slippage during installation
- Reliable coarse threading with Class 3A fit for quick assembly and high vibration resistance in industrial settings
- Durable black oxide finish providing added wear resistance and reduced light reflection for functional aesthetics
- Full regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for safe, global industrial use
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw with black oxide finish is engineered to solve critical alignment and corrosion challenges in precision assemblies. The UNC coarse thread and Class 3A thread fit ensure rapid, secure fastening in high-vibration environments like robotics, conveyor systems, and machinery mounts. The precisely machined shoulder—with tight diameter and length tolerances—acts as a pivot, spacer, or bearing surface, eliminating the need for additional components and reducing assembly errors. Its Rockwell B79 hardness and high tensile/shear strength provide long-term reliability under dynamic loads, while the knurled socket head enhances torque transmission. Ideal for applications demanding corrosion resistance and repeatable positioning, this screw delivers consistent performance in automotive, marine, and food processing equipment.
Specification Summary & Compliance
This shoulder screw features a 10-24 UNC coarse thread with Class 3A thread fit for precision engagement. The shoulder diameter (1/4") and length (1 1/2") adhere to strict tolerances, ensuring exact alignment. Manufactured in compliance with ASME B18.3 specifications, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, guaranteeing safety and sustainability in industrial use.
