S-92198A309 5/16"-24 x 2" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel Hex 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 with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
- High tensile strength of 80,000 psi ensures reliable performance under significant load and stress, reducing the risk of fastener failure.
- Fine UNF thread spacing (24 TPI) provides a tighter, more secure fit compared to coarse threads, minimizing loosening from vibration.
- Class 2A thread fit offers consistent, easy assembly and interchangeability with standard UNF nuts and tapped holes.
- Partially threaded design allows for precise clamping force on specific sections, preventing over-tightening and material damage.
- External hex drive and hex head enable high-torque installation with common tools, speeding up assembly and maintenance processes.
- Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards for industrial components.
Professional Applications & Engineering Value
This 5/16"-24 UNF hex head screw in 18-8 stainless steel is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress demands. The fine thread spacing and Class 2A fit provide exceptional holding power in machinery, automotive assemblies, and structural frameworks where precision and reliability are critical. Its partially threaded shank concentrates clamping force, reducing stress concentration points and preventing joint failure. With an external hex drive, it supports quick, high-torque installations in confined spaces, making it a go-to solution for maintenance and OEM applications requiring durable, corrosion-resistant fasteners that withstand harsh operational conditions.
Specification Summary & Compliance
This screw adheres to ASME B18.2.1 specifications, ensuring dimensional accuracy and interchangeability. Threads are manufactured to UNF standard with a Class 2A fit for consistent engagement. It is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.
