S-97654A623 1/4"-20 x 1 3/4" Stainless Steel Flanged Button Head Hex-Drive Screws
Stainless Steel Flanged Button Head Hex-Drive 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
- Superior corrosion resistance with 18-8 stainless steel and passivated finish, ideal for harsh industrial environments.
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity and joint integrity under stress.
- Flanged design with wide rounded button head eliminates the need for separate washers, providing enhanced load distribution and simplified installation.
- Hex drive (5/32") allows for high torque application and secure fastening without slippage.
- Class 3A thread fit with UNC coarse spacing delivers precise, vibration-resistant connections for demanding applications.
- Full threading along the 1 3/4" length offers maximum grip and adjustability in various material thicknesses.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for global industrial markets.
Professional Applications & Engineering Value
This 18-8 stainless steel flanged rounded head screw is engineered to address common industrial challenges such as vibration loosening and corrosion-induced failure. The combination of a fully threaded UNC coarse design and Class 3A thread fit provides exceptional holding power in machinery, automotive assemblies, and structural frameworks. The passivated finish enhances the innate corrosion resistance of stainless steel, making it suitable for outdoor, marine, or chemically exposed settings. The integrated flange and hex drive streamline installation, reducing assembly time while maintaining a clean, professional appearance. Ideal for applications requiring high tensile strength and regulatory compliance, this fastener ensures long-term reliability in critical B2B environments.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC thread with Class 3A fit and coarse spacing, ensuring precise dimensional accuracy per industry standards. It is manufactured from 18-8 stainless steel with a passivated surface treatment, offering a hardness of Rockwell B70 and tensile strength of 70,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial fastener applications.
