S-94070A106 4-40 x 1/4" ASME B18.6.3 Brass Pan Head Phillips Screws
Brass Pan Head Phillips 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 brass material, ideal for humid or corrosive industrial environments
- High tensile strength of 50,000 psi ensures reliable fastening under mechanical stress
- Class 2A thread fit with UNC coarse threading provides easy installation and secure hold in various materials
- Fully threaded design maximizes grip and load distribution along the entire screw length
- Phillips drive with No. 1 size offers efficient torque application and reduced cam-out risk
- Pan head profile with standard rounded shape allows for flush or slightly protruding mounting with enhanced aesthetics
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards for global applications
Professional Applications & Engineering Value
These 4-40 UNC brass pan head Phillips screws are engineered to address common industrial challenges such as corrosion, vibration loosening, and assembly efficiency. The brass material naturally resists rust and galvanic corrosion, making these screws perfect for electrical enclosures, marine equipment, and plumbing systems where moisture is a concern. The coarse UNC threading and Class 2A fit ensure quick, secure fastening in soft metals or plastics, reducing installation time and minimizing strip-out risks. With a Rockwell B40 hardness and 50,000 psi tensile strength, they maintain integrity under dynamic loads, while the fully threaded design and Phillips drive provide consistent clamping force and easy driver engagement. Ideal for industrial assembly, electronics, and automotive applications, these screws deliver long-term reliability and compliance with stringent industry regulations.
Specification Summary & Compliance
These screws feature precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy and interchangeability. The 1/4" length and coarse thread spacing are manufactured to meet ASME B18.6.3 specifications for pan head screws. Additionally, they are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming adherence to environmental and safety regulations for hazardous substances.
