S-92198A357 3/8"-24 x 1 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
- Exceptional corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and reducing replacement frequency
- High tensile strength of 80,000 psi ensures reliable load-bearing capacity and joint integrity under stress
- Precision UNF fine threading with Class 2A fit provides superior vibration resistance and secure fastening in critical assemblies
- Partially threaded design allows for controlled clamping force and prevents thread damage during installation
- External hex drive and hex head enable high-torque application with standard tools, speeding up assembly processes
- Rockwell B70 hardness offers excellent wear resistance, maintaining thread form and drive integrity over repeated use
- Full compliance with ASME B18.2.1, RoHS 3, and REACH guarantees material safety and interchangeability in regulated industries
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 18-8 stainless steel hex head screws address common challenges like corrosion-induced failure and thread stripping. The UNF fine thread profile and Class 2A fit ensure tight, reliable seals in high-vibration machinery, automotive subsystems, and precision equipment. With partial threading, the screw minimizes cross-threading risks and concentrates stress away from the head, enhancing fatigue life. The external hex drive accommodates high torque for secure fastening in confined spaces, making these screws a go-to solution for assembly lines, marine hardware, and chemical processing plants where corrosion resistance and 80,000 psi tensile strength are non-negotiable.
Specification Summary & Compliance
This screw adheres to ASME B18.2.1 dimensional standards with a 3/8"-24 UNF fine thread and Class 2A thread fit for consistent interchangeability. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and material traceability. The 1 1/2" length and partial threading (minimum 1" thread length) provide precise engagement, backed by Rockwell B70 hardness and verified mechanical properties.
