S-90909A529 1/4"-20 x 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 316 stainless steel and passivated finish, ideal for harsh industrial environments.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibrations.
- Class 3A thread fit provides precise, tight tolerances for secure fastening in critical applications.
- Flanged design with a wide rounded head eliminates the need for separate washers, distributing load evenly and reducing assembly time.
- Hex drive compatibility (5/32") allows for easy installation and removal with standard tools, minimizing slippage.
- Fully threaded UNC coarse spacing enables quick engagement and strong holding power in various materials.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards.
Professional Applications & Engineering Value
This 316 stainless steel flanged rounded head screw is engineered to address common industrial challenges, such as corrosion in marine, chemical, and outdoor settings. The passivated finish enhances durability by forming a protective layer that resists oxidation and chemical exposure. With a UNC coarse thread and Class 3A fit, it ensures rapid installation and reliable performance in high-vibration applications, like machinery assembly or automotive components. The integrated flange provides stable seating, reducing the risk of loosening and improving load distribution. Ideal for industrial screws in demanding environments, it combines high tensile strength and hex drive efficiency to streamline maintenance and enhance operational longevity.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 3A fit for precise dimensional accuracy. It features a coarse thread spacing and is manufactured from 316 stainless steel with a passivated finish. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for industrial use.
