S-97654A653 1/4"-20 x 1/4" ASME B18.3 Stainless Steel Flanged Button Head Hex-Drive Screws
Stainless Steel Flanged Button Head Hex-Drive 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Superior load-bearing capacity from 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance
- Precise, secure fastening ensured by Class 3A thread fit and UNC coarse threading for quick assembly
- Enhanced stability and distribution with the integrated flange design, reducing the need for separate washers
- Easy installation and removal using a standard 5/32" hex drive, compatible with common tools
- Wide application compatibility thanks to compliance with ASME B18.3 standards and inch system measurements
- Environmentally safe usage with RoHS 3 and REACH compliance, meeting strict regulatory requirements
Professional Applications & Engineering Value
This 1/4"-20 UNC hex drive rounded head screw is engineered to address common industrial fastening challenges, such as vibration loosening and material fatigue. Its 18-8 stainless steel composition provides excellent resistance to rust and corrosion, making it suitable for outdoor, marine, or chemical-exposed settings. The flanged design offers a larger bearing surface, distributing clamp load evenly and preventing surface damage, which is critical in assembly lines and machinery. With a Class 3A thread fit and coarse threading, it ensures rapid installation and high reliability in high-stress applications, from heavy equipment to structural frameworks. The right-hand thread and fully threaded body deliver consistent grip, reducing maintenance needs and downtime in B2B operations.
Specification Summary & Compliance
This screw adheres to precise dimensional tolerances, including a Class 3A thread fit for tight, secure connections and UNC coarse thread specifications. It meets ASME B18.3 manufacturing standards, ensuring consistency and reliability. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for environmental and health standards in industrial use.
