S-92198A439 1/2"-20 x 2 1/2" 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 maintenance costs.
- High tensile strength of 80,000 psi ensures reliable load-bearing capacity and prevents failure under stress.
- Class 2A thread fit provides consistent, smooth assembly with standard UNF fine-pitch nuts for secure, vibration-resistant connections.
- Partially threaded design allows for precise clamping force control and minimizes thread damage during repeated use.
- Rockwell B70 hardness enhances durability and wear resistance, extending service life in demanding applications.
- External hex head with 3/4" width offers easy installation and removal using common tools, improving workflow efficiency.
- Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety regulations.
Professional Applications & Engineering Value
This 1/2"-20 UNF hex head screw in 18-8 stainless steel addresses critical engineering challenges in industrial settings, such as corrosion-induced degradation and mechanical fatigue. The fine-pitch UNF threading and Class 2A fit ensure tight, reliable fastening in machinery, structural assemblies, and automotive components, reducing the risk of loosening under vibration. Its partially threaded configuration allows for optimal grip length adjustment, preventing over-torquing and thread stripping. With a 2-1/2" length and high tensile strength, it supports heavy-duty applications like construction equipment and marine hardware, where durability and regulatory compliance are paramount.
Specification Summary & Compliance
This screw features a 1/2"-20 UNF thread with Class 2A dimensional accuracy and a fine thread spacing for precise engagement. Manufactured to ASME B18.2.1 specifications, it ensures interoperability with standard components. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in regulated industries without hazardous substances.
