S-90909A530 1/4"-20 x 1" 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 316 stainless steel construction, ideal for harsh environments and extended service life.
- Superior thread engagement and reliability due to the Class 3A thread fit, minimizing the risk of loosening under vibration.
- High mechanical strength with a tensile strength of 70,000 psi, ensuring dependable performance under heavy loads.
- Enhanced durability and wear resistance provided by the Rockwell B70 hardness and passivated surface finish.
- Efficient installation and removal using a standard 5/32" hex drive, reducing assembly time and tool slippage.
- Integrated flange for increased bearing surface, distributing load effectively and preventing surface damage.
- Full environmental compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 316 stainless steel rounded head screws address critical challenges like corrosion, vibration, and high-stress conditions. The Class 3A UNC coarse thread ensures precise, secure fastening in metals and plastics, while the fully threaded design provides consistent holding power along the entire 1" length. The flanged button head offers a low-profile, wide bearing surface that reduces the need for separate washers, simplifying assembly in tight spaces. With a passivated finish enhancing the innate corrosion resistance of 316 stainless, these screws are ideal for marine, chemical processing, and food equipment applications where reliability and compliance with environmental standards are paramount.
Specification Summary & Compliance
This screw adheres to UNC coarse thread standards with a Class 3A thread fit for high precision. Key dimensions include a 1/4"-20 thread size, 1" length, and 0.56" flange diameter. It is manufactured from 316 stainless steel with a passivated finish and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements.
