S-90234A180 4-40 x 1/2" ASME B18.6.3 Titanium Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from Grade 2 Titanium construction, ideal for harsh environments and chemical exposure
• High strength-to-weight ratio with 40,000 psi tensile strength for reliable performance in demanding applications
• Superior holding power achieved through fully threaded 4-40 UNC coarse thread design
• Consistent drive engagement with Phillips No. 1 drive style and rounded pan head profile
• Precise thread fit with Class 2A tolerance ensuring smooth installation and secure fastening
• Enhanced durability with Rockwell B80 hardness for long-term reliability
• Regulatory compliance meeting ASME B18.6.3, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

These Grade 2 Titanium Rounded Head Phillips screws deliver critical performance advantages in demanding industrial environments where corrosion resistance and high strength are paramount. The 4-40 UNC coarse thread configuration provides excellent vibration resistance and superior clamping force in materials where fine threads might strip or fail. With fully threaded design and Class 2A thread fit, these fasteners ensure consistent installation torque and reliable performance in aerospace, medical equipment, marine applications, and chemical processing industries. The rounded pan head profile with Phillips No. 1 drive offers a low-profile solution that resists snagging while providing sufficient drive engagement for efficient assembly operations.

Specification Summary & Compliance

This 4-40 UNC screw features precise Class 2A thread fit tolerance and measures 1/2" in length with standard coarse thread spacing. Manufactured to meet ASME B18.6.3 specifications for dimensional accuracy and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.