S-92198A311 5/16"-24 x 2 1/2" 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
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Secure fastening with fine UNF threads providing superior vibration resistance and precise thread engagement
- Easy installation and removal with external hex drive design offering excellent tool accessibility and torque transmission
- Optimized thread engagement with Class 2A thread fit ensuring consistent, reliable connections in assembly applications
- Environmental compliance assurance meeting RoHS 3 and REACH standards for sustainable manufacturing practices
- Partial threading design allowing for precise clamping force control and reduced thread damage in specific applications
Professional Applications & Engineering Value
These 18-8 stainless steel hex head screws deliver exceptional performance in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. The 5/16"-24 UNF fine thread configuration provides superior vibration resistance compared to coarse threads, making them ideal for machinery, equipment assembly, and structural applications subject to dynamic loads. The external hex drive design ensures maximum torque transmission during installation, while the partial threading allows for precise unthreaded shank sections that maintain alignment and distribute stress effectively. Engineered to ASME B18.2.1 specifications, these screws offer predictable performance and interchangeability in maintenance, repair, and OEM applications across multiple industries including manufacturing, construction, and heavy equipment.
Specification Summary & Compliance
This 2-1/2" hex head screw features precise Class 2A thread fit tolerances with 5/16"-24 UNF fine threads and partial threading configuration. Manufactured in compliance with ASME B18.2.1 standards for dimensional consistency and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance compliance for global industrial applications.
