S-94070A110 4-40 x 1/2" 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 construction, ideal for harsh environments and electrical applications
- Excellent holding power from the fully threaded design and 50,000 psi tensile strength for reliable fastening
- Effortless installation with the Phillips No. 1 drive and pan head design, reducing assembly time
- Precise thread engagement ensured by Class 2A thread fit and UNC coarse threads for quick, secure fastening
- Enhanced durability with Rockwell B40 hardness, providing long-term performance under stress
- Broad compatibility with standard 4-40 UNC threading for versatile use across industrial equipment
- Regulatory peace of mind by meeting ASME B18.6.3, RoHS 3, and REACH standards for safe, compliant operations
Professional Applications & Engineering Value
This 4-40 UNC brass machine screw with a pan head and Phillips drive is engineered to address common industrial challenges like corrosion and vibration loosening. The brass material offers inherent resistance to rust and galvanic corrosion, making it perfect for electrical enclosures, marine hardware, and plumbing systems. Its coarse thread spacing and Class 2A thread fit provide quick assembly and reliable grip in materials where fine threads might strip. With a fully threaded design and high tensile strength, it ensures consistent clamping force, reducing maintenance needs in machinery, automotive, and HVAC applications. The rounded pan head profile sits flush for a clean finish, while compliance with ASME B18.6.3 guarantees dimensional accuracy and performance reliability.
Specification Summary & Compliance
This screw features precise UNC thread with Class 2A fit for standard tolerance, coarse thread spacing, and dimensions including 1/2" length, 0.219" head diameter, and No. 1 Phillips drive. It is manufactured to meet ASME B18.6.3 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industry-standard quality.
