S-91355A164 8-32 x 3/16" Steel Flanged Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance in demanding applications, reducing failure risks
• Precision Class 3A thread fit guarantees tight tolerances and secure fastening in critical assemblies
• Black-oxide coating on alloy steel provides superior corrosion resistance and extended service life
• Integrated flange design eliminates the need for separate washers, simplifying installation and improving load distribution
• Hex drive with 3/32" size offers secure tool engagement and efficient torque application
• Coarse UNC threading enables quick installation and superior holding power in various materials
• Full threading along the 3/16" length provides maximum grip and adjustment flexibility

Professional Applications & Engineering Value

Engineered for industrial applications requiring high-strength fastening solutions, these 8-32 UNC Class 3A rounded head screws deliver exceptional performance in machinery, automotive, and electronic enclosures. The black-oxide alloy steel construction combined with Rockwell C32 hardness provides excellent resistance to wear and environmental factors, while the flanged design prevents surface damage and maintains joint integrity under vibration. The coarse thread spacing ensures rapid installation in production environments, making them ideal for high-volume assembly lines where reliability and efficiency are paramount.

Specification Summary & Compliance

These screws feature precision UNC Class 3A threads with right-hand direction and coarse spacing, manufactured to exacting dimensional standards including 0.164" thread diameter and 0.359" flange diameter. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.