S-92198A113 1/4"-28 x 2" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and reducing long-term replacement costs.
- Exceptional tensile strength of 80,000 psi ensures reliable performance under high-stress conditions, minimizing the risk of fastener failure.
- Fine UNF thread with Class 2A fit provides precise, secure fastening and vibration resistance in critical assemblies.
- Partially threaded design allows for controlled clamping force and easier alignment in varied material thicknesses.
- External hex drive and standard hex head enable quick installation and removal with common tools, boosting assembly efficiency.
- Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees consistent quality and environmental safety for regulated industries.
- Rockwell B70 hardness enhances durability and wear resistance, extending service life in demanding applications.
Professional Applications & Engineering Value
This 1/4"-28 UNF hex head screw in 18-8 stainless steel addresses common engineering challenges such as corrosion-induced degradation and thread stripping in fine-thread applications. The partially threaded configuration ensures optimal grip and stress distribution, preventing joint loosening under vibration. With a tensile strength of 80,000 psi and Class 2A thread fit, it delivers precision and reliability in machinery, automotive, and structural assemblies where fine thread screws are critical. The external hex drive simplifies maintenance, while the material's inherent resistance to rust and chemicals reduces downtime in industrial settings, making it a cost-effective solution for long-term projects.
Specification Summary & Compliance
This screw adheres to ASME B18.2.1 standards, ensuring dimensional accuracy and interchangeability. The UNF thread with Class 2A fit provides tight tolerances for secure fastening. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), meeting environmental and safety regulations for industrial use.
