S-90234A170 4-40 x 1/4" 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 industrial environments and extending service life
• High tensile strength of 40,000 psi ensures reliable fastening under demanding mechanical loads
• Rockwell B80 hardness provides superior wear resistance and durability for repeated use
• Fully threaded UNC coarse design with Class 2A fit enables quick installation and secure holding power
• Phillips drive with No. 1 size offers efficient torque transmission and reduces cam-out risks
• Rounded pan head profile delivers a low-profile, finished appearance while distributing clamp load effectively
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards for global supply chains

Professional Applications & Engineering Value

These 4-40 UNC Grade 2 Titanium Rounded Head Phillips Screws address critical needs in aerospace, medical devices, and marine equipment, where corrosion resistance and high strength-to-weight ratio are paramount. The titanium material prevents galvanic corrosion and withstands extreme temperatures, while the coarse thread and Class 2A fit ensure vibration resistance and easy assembly in tight spaces. With a fully threaded design and Phillips drive, they reduce installation time and provide consistent performance in industrial applications, minimizing maintenance and replacement costs.

Specification Summary & Compliance

This screw features a 4-40 UNC coarse thread with Class 2A dimensional tolerance for precise fit, manufactured in accordance with ASME B18.6.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.