S-97654A262 1/4"-20 x 1/2" 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
- Exceptional corrosion resistance from 18-8 stainless steel and passivated finish, ideal for harsh industrial environments.
- Superior holding power and reliability with a high 70,000 psi tensile strength and Rockwell B70 hardness.
- Faster installation and reduced cross-threading thanks to the coarse UNC thread and Class 3A fit for precision.
- Secure, flush-mount fastening with a wide, rounded button head design that distributes load and resists tampering.
- High-torque capability from the 5/32" hex drive, allowing for firm tightening in confined spaces.
- Eliminates the need for a separate washer due to the integrated flange, saving assembly time and parts.
- Global compliance assurance with RoHS 3 and REACH regulations, ensuring material safety and environmental responsibility.
Professional Applications & Engineering Value
This 18-8 stainless steel rounded head screw is engineered to solve critical fastening challenges in demanding sectors like machinery, automotive, and outdoor equipment. Its passivated finish significantly enhances corrosion resistance, preventing failure in moist or chemical-laden environments. The UNC coarse thread and Class 3A fit ensure rapid, reliable engagement in a variety of materials, reducing the risk of stripping. The combination of a flanged, wide rounded head and a fully threaded design provides a large bearing surface and maximum grip length, making it an ideal choice for securing panels, brackets, and components where vibration resistance and a clean finish are paramount.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a precision Class 3A fit for superior thread engagement. Key dimensional specifications include a 1/4"-20 thread size, 1/2" length, and a 0.563" flange diameter. It is manufactured from 18-8 Stainless Steel and meets critical international regulations, being fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant.
