S-95599A140 1/4"-20 x 1 1/2" 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 for long-lasting performance in harsh industrial environments
- Enhanced load distribution through the 0.813" flange diameter, preventing surface damage and maintaining joint integrity
- High-strength performance with 80,000 psi tensile strength and Rockwell B85 hardness for demanding applications
- Secure installation with 5/32" hex drive design providing positive torque transmission and reduced stripping risk
- Reliable thread engagement featuring UNC coarse threads with Class 2A fit for quick assembly and vibration resistance
- Wide bearing surface from the button head design distributes clamping force effectively across connected materials
- Full threading capability ensures maximum grip length and versatility across various material thicknesses
Professional Applications & Engineering Value
These 18-8 stainless steel rounded head screws deliver exceptional engineering value for industrial applications where corrosion resistance and structural integrity are paramount. The combination of UNC coarse threading and Class 2A thread fit provides rapid assembly in production environments while maintaining secure fastening in vibrating equipment. The flanged design eliminates the need for separate washers, reducing installation time and component count. The wide button head profile creates an attractive finish while the hex drive ensures reliable torque application without cam-out issues. Ideal for machinery assembly, electrical enclosures, and structural frameworks where 80,000 psi tensile strength meets demanding mechanical requirements.
Specification Summary & Compliance
This 1/4-20 UNC fully threaded screw maintains precise Class 2A thread fit tolerances for consistent performance. Manufactured from 18-8 Stainless Steel with Rockwell B85 hardness, the fastener features a 1-1/2" length with 0.813" flange diameter and 5/32" hex drive. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for regulated industrial applications worldwide.
