S-90471A439 10-32 x 1/4" ASME B18.6.3 Steel Phillips Flat Head Screws
Steel Phillips Flat Head 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 zinc-plated steel construction, ensuring long-lasting performance in demanding environments
- High tensile strength of 60,000 psi provides reliable fastening under stress, reducing failure risks in industrial assemblies
- Precise Class 2A thread fit ensures smooth installation and secure connections, minimizing cross-threading and rework
- Standard 100° countersink angle allows for flush mounting, enhancing aesthetics and safety in finished products
- No. 2 Phillips drive design offers efficient torque transfer and common tool compatibility, speeding up assembly processes
- Fine UNF threads deliver enhanced grip in materials, improving vibration resistance and joint integrity
- Full threading along the 1/4" length maximizes engagement depth, providing consistent holding power across applications
Professional Applications & Engineering Value
These 10-32 UNF flat head screws are engineered to address common industrial challenges, such as vibration loosening and corrosion-induced failures. The zinc-plated steel material offers a protective barrier against moisture and chemicals, extending service life in machinery, electronics, and automotive assemblies. With a fine thread configuration and Class 2A fit, they ensure tight, reliable fastening in precision components, reducing maintenance needs. The flat head with Phillips drive facilitates easy installation in countersunk holes, making them ideal for applications requiring a smooth surface finish. Compliant with ASME B18.6.3, they meet rigorous standards for dimensional accuracy and performance, supporting efficient production lines and durable end-products.
Specification Summary & Compliance
This product adheres to ASME B18.6.3 specifications, ensuring consistent dimensions including a 0.362" head diameter and 1/4" length. Threads are manufactured to UNF fine thread standards with a Class 2A fit for precise tolerance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances. The screws feature a 100° countersink angle and fully threaded design, supporting reliable industrial use.
