S-92186A388 1/2"-20 x 2 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
Super-Corrosion-Resistant 316 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 in harsh environments due to premium 316 stainless steel construction
- Superior mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Reliable, fine-thread engagement with 1/2"-20 UNF threads and Class 2A fit for secure, vibration-resistant connections
- Optimized for high-torque installation featuring a 3/4" external hex head for easy driving with standard tools
- Versatile partial threading allows for both secure clamping and unthreaded shank strength where needed
- Guaranteed dimensional consistency and interchangeability, manufactured to meet ASME B18.2.1 specifications
- Safe for regulated industries with full compliance to RoHS 3 and REACH environmental standards
Professional Applications & Engineering Value
This 316 Stainless Steel Hex Head Screw is engineered to solve critical challenges in corrosive and high-stress environments. The UNF fine thread profile provides a greater number of threads per inch compared to coarse threads, resulting in superior resistance to loosening under vibration and enabling more precise tension control in assemblies. The external hex drive and robust head design allow for high torque application, making it ideal for heavy-duty industrial machinery, chemical processing equipment, and marine applications where partially threaded fasteners are specified to combine a strong, unthreaded grip length with a securely engaged threaded portion. Its inherent corrosion resistance significantly reduces maintenance costs and extends service life, delivering long-term engineering value and reliability.
Specification Summary & Compliance
This screw features a 1/2"-20 UNF thread with a Class 2A thread fit, ensuring dimensional accuracy and interchangeability. It is manufactured in compliance with the ASME B18.2.1 standard. The product is also confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.
