S-92198A437 1/2"-20 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
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration
- Fine UNF thread (1/2"-20) provides superior holding power and vibration resistance compared to coarse threads
- External hex drive with 3/4" head width allows for high torque application and easy installation with standard tools
- Class 2A thread fit guarantees consistent, precise engagement with mating components
- Partial threading design offers optimal grip length while maintaining unthreaded shank strength
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
Professional Applications & Engineering Value
These 18-8 stainless steel hex head screws deliver exceptional performance in demanding industrial applications where corrosion resistance and mechanical strength are critical. The UNF fine thread configuration (1/2"-20) provides superior vibration resistance compared to coarse threads, making them ideal for machinery, equipment manufacturing, and structural assemblies subject to dynamic loads. The external hex drive enables high torque application without stripping, while the partial threading design ensures maximum clamping force where needed. With their 80,000 psi tensile strength and Rockwell B70 hardness, these screws maintain integrity in heavy-duty applications, from industrial machinery to construction equipment, where reliability cannot be compromised.
Specification Summary & Compliance
This 1/2"-20 UNF hex head screw features precise Class 2A thread fit tolerances and partial threading with minimum thread length of 1-1/4". Manufactured to ASME B18.2.1 specifications for dimensional accuracy and performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
