S-96660A173 1/4"-20 x 1" Steel Flanged Button Head Hex-Drive Screws
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 tensile strength of 120,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Superior corrosion resistance provided by the zinc plating on alloy steel, extending service life in harsh industrial environments.
- Precise Class 3A thread fit guarantees secure and accurate mating with nuts and tapped holes, minimizing assembly issues.
- Integrated flange design eliminates the need for a separate washer, providing a larger bearing surface and simplifying installation.
- Robust Rockwell C32 hardness offers excellent resistance to wear and deformation during repeated use or high-torque tightening.
- Convenient 5/32" hex drive allows for easy installation and removal with standard tools, speeding up assembly processes.
- Full UNC coarse threading ensures quick engagement and strong holding power, ideal for a wide range of materials.
Professional Applications & Engineering Value
This zinc-plated alloy steel rounded head screw is engineered to address common industrial fastening challenges, such as vibration loosening and corrosion-induced failure. The flanged button head design distributes clamping force evenly, preventing surface damage and maintaining joint integrity in machinery, automotive assemblies, and structural frameworks. Its Class 3A UNC coarse thread provides rapid installation and high resistance to stripping, while the hex drive ensures secure tool engagement for high-torque applications. Ideal for heavy-duty fastening in environments requiring reliable, long-term performance, this screw combines material strength with thoughtful design to reduce maintenance needs and enhance operational safety.
Specification Summary & Compliance
This screw adheres to UNC coarse thread standards with a precise Class 3A thread fit for accurate assembly. Dimensions include a 1/4"-20 thread size, 1" length, and 0.563" flange diameter. Manufacturing ensures compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible and safe industrial use.