S-96880A233 4-40 x 1/2" ASME B18.6.3, FF-S-92, QQ-P-416, MS35206-217, NASM35206 Steel Pan Head Phillips Screws
Steel 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 cadmium-plated steel construction, extending service life in harsh industrial environments
- High tensile strength of 60,000 psi ensures reliable fastening under heavy loads and vibration
- Rockwell B69 hardness provides excellent durability and resistance to wear during installation and use
- Class 2A thread fit with UNC coarse threading allows for quick assembly and reduced cross-threading risks
- Fully threaded design offers consistent grip and holding power along the entire 1/2" length
- Pan-style rounded head with Phillips No. 1 drive enables secure tool engagement and a low-profile finish
- Compliance with ASME B18.6.3 and multiple federal specs guarantees precision and interoperability in regulated applications
Professional Applications & Engineering Value
This 4-40 UNC rounded head Phillips screw is engineered to address critical challenges in industrial assembly, where corrosion resistance and mechanical reliability are paramount. The cadmium-plated steel material provides a protective barrier against oxidation and chemical exposure, making it ideal for electronics, aerospace, and machinery subjected to demanding conditions. Its coarse UNC threading and Class 2A fit facilitate rapid installation with minimal risk of stripping, while the fully threaded shank ensures uniform stress distribution. With a tensile strength of 60,000 psi and compliance to ASME B18.6.3, this screw delivers consistent performance in applications requiring precise fastening, such as control panels, enclosures, and structural components, reducing maintenance needs and enhancing operational safety.
Specification Summary & Compliance
This product adheres to Class 2A thread fit per UNC standards, ensuring dimensional accuracy and interchangeability. It meets ASME B18.6.3, Fed. Spec. FF-S-92, QQ-P-416, MS35206-217, and NASM35206 specifications, confirming manufacturing consistency. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, supporting environmental and safety regulations in global supply chains.
