S-92800A373 1/4"-28 x 4" 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
• High tensile strength of 80,000 psi ensures reliable performance in heavy-duty applications
• Precision Class 2A thread fit guarantees consistent engagement and reduces assembly issues
• External hex drive design allows for easy installation with standard tools and high torque transmission
• Fine UNF threading provides superior vibration resistance and improved load distribution
• Full threading along the 4" length offers maximum adjustability and secure fastening in deep materials
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 1/4"-28 UNF hex head screws deliver exceptional reliability in machinery, automotive, and construction assemblies. The 18-8 Stainless Steel material provides excellent corrosion resistance, reducing maintenance costs in humid or chemical-exposed environments. With a Rockwell B70 hardness and 80,000 psi tensile strength, they withstand high stress and vibration without failure. The fine thread and Class 2A fit ensure precise alignment and prevent loosening, while the external hex drive facilitates quick installation with common wrenches, boosting assembly line efficiency and reducing downtime.

Specification Summary & Compliance

This screw features a 1/4"-28 UNF fine thread with Class 2A thread fit for consistent dimensional accuracy. It adheres to the inch system and UNF thread standard, ensuring compatibility with standard components. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental and safety standards for industrial use.