S-95599A138 1/4"-20 x 3/4" Stainless Steel Oversized-Flange Button Head Hex-Drive Screws
Stainless Steel Oversized-Flange 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 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
- High tensile strength of 80,000 psi ensures a secure and durable hold, preventing joint failure under stress.
- Integrated flange design eliminates the need for a separate washer, providing a larger bearing surface for improved load distribution.
- Hex drive compatibility (5/32") allows for high-torque installation with common tools, reducing assembly time and slippage.
- UNC coarse threading and Class 2A fit enable quick and easy installation, even in materials where fine threads might strip.
- Wide, rounded button head profile offers a low-profile, finished appearance while reducing surface pressure.
- Full compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptability.
Professional Applications & Engineering Value
This 1/4-20 x 3/4" flanged rounded head screw is engineered to address common industrial fastening challenges. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it suitable for outdoor equipment, marine applications, and chemical processing environments where moisture is a concern. The flanged head design distributes clamping force over a wider area, reducing the risk of material damage and maintaining joint integrity in assemblies like machinery panels, automotive components, and electronic enclosures. Combined with the UNC coarse thread and hex drive, it ensures rapid, secure installation in both soft and hard materials, streamlining production lines and maintenance workflows while offering a reliable, heavy-duty fastening solution.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with a Class 2A thread fit for standard tolerance and easy assembly. It is fully threaded for maximum grip and has a length of 3/4". The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industries.
