S-92185A518 1/4"-20 x 2 1/2" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws
Super-Corrosion-Resistant 316 Stainless Steel Socket Head 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 in harsh environments thanks to 316 stainless steel construction and passivated finish
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable, high-stress applications
- Precise, secure fastening ensured by the Class 3A thread fit, minimizing the risk of loosening under vibration
- Easy installation and removal with the standard hex socket drive and 3/16" drive size, providing a positive grip
- Broad compatibility with the 1/4"-20 UNC coarse thread, a common and versatile thread standard
- Full-length thread engagement for maximum holding power and flexibility in assembly depth
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe and responsible sourcing
Professional Applications & Engineering Value
This 316 Stainless Steel Socket Head Cap Screw is engineered to solve critical challenges in demanding industrial settings. Its core value lies in the combination of 316 stainless steel and a passivated finish, which dramatically enhances pitting and crevice corrosion resistance, making it ideal for chemical processing, marine, and food-grade equipment where exposure to corrosive agents is a constant concern. The Class 3A thread fit provides a tighter tolerance than standard fits, delivering superior vibration resistance and clamping force integrity in machinery, automotive assemblies, and precision tooling. The coarse UNC thread and fully threaded design allow for rapid assembly and reliable performance even in materials with lower shear strength, streamlining production and maintenance workflows.
Specification Summary & Compliance
This fastener adheres to the Unified National Coarse (UNC) thread standard with a precision Class 3A thread fit. The dimensional specifications include a 1/4"-20 thread size, a 2 1/2" length, and a 3/16" hex drive. The manufacturing and material compliance is confirmed, meeting RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.
