S-92240A480 5/8"-18 x 1 1/4" 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 from 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional tensile strength rated at 80,000 psi for reliable performance in heavy-duty applications
- Precision Class 2A thread fit ensures smooth assembly and consistent fastening quality
- Optimized torque transmission through external hex drive design for secure installation
- Fine UNF thread spacing provides enhanced vibration resistance and superior clamping force
- Full threading along 1-1/4" length offers maximum engagement and versatility across various material thicknesses
- Rockwell B70 hardness maintains structural integrity under repeated stress and load conditions
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 18-8 stainless steel hex head screws deliver critical corrosion resistance where environmental factors threaten fastener integrity. The combination of 80,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in structural assemblies, machinery manufacturing, and heavy equipment maintenance. The external hex drive configuration provides superior torque transmission during installation, reducing the risk of stripping while the Class 2A thread fit guarantees precise engagement in critical assemblies. These fully threaded UNF fasteners with fine thread spacing excel in applications requiring vibration resistance and consistent clamping force, making them ideal for automotive, marine, and industrial machinery where fastener failure is not an option.
Specification Summary & Compliance
This 5/8"-18 UNF hex head screw features precision Class 2A thread fit with right-hand fine thread spacing and full threading along the 1-1/4" length. Manufactured to ASME B18.2.1 standards for dimensional accuracy and performance reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across regulated industries and international markets.
