S-92800A256 1/2"-20 x 4 3/4" 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 thanks to 18-8 Stainless Steel construction, ideal for harsh environments
- Exceptional tensile strength of 80,000 psi ensures reliable performance under high-stress conditions
- Precise Class 2A thread fit guarantees consistent engagement and reduces the risk of cross-threading
- Fine UNF threading (1/2"-20) provides superior vibration resistance and improved clamping force
- External hex drive and hex head design allows for easy installation with standard tools and high torque application
- Partially threaded shank offers optimal grip length control and prevents over-tightening
- Full regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries
Professional Applications & Engineering Value
This 18-8 Stainless Steel Hex Head Screw with 1/2"-20 UNF fine threading is engineered to address critical industrial challenges where corrosion resistance and mechanical reliability are paramount. The combination of Rockwell B70 hardness and 80,000 psi tensile strength ensures durability in high-vibration applications such as heavy machinery, structural assemblies, and marine equipment. The partially threaded design provides precise unthreaded shank sections for improved shear strength, while the external hex drive facilitates quick installation in confined spaces. Its Class 2A thread fit maintains consistent torque values and prevents galling, making it ideal for repetitive disassembly in maintenance-intensive environments.
Specification Summary & Compliance
This fastener features 1/2"-20 UNF fine threads with Class 2A fit per unified thread standards, ensuring dimensional accuracy and interchangeability. The 4 3/4" length includes a 1 1/4" minimum thread length for secure fastening. Manufactured from 18-8 Stainless Steel with Rockwell B70 hardness, it delivers consistent mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety requirements for industrial applications worldwide.
