S-90402A145 6-32 x 5/16" ASME B18.13 Steel Pan Head Phillips Screws with External-Tooth Lock Washer
Steel Pan Head Phillips Screws with External-Tooth Lock Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior vibration resistance through the integrated external-tooth lock washer, ensuring reliable fastening in high-motion environments.
- Exceptional durability and corrosion protection with zinc-plated steel construction, extending service life in harsh industrial conditions.
- High tensile strength of 60,000 psi and Rockwell B69 hardness for secure, long-lasting performance under heavy loads.
- Easy installation and removal with the Phillips No. 2 drive and fully threaded UNC coarse thread design, reducing assembly time.
- Precise Class 2A thread fit for consistent engagement and reduced risk of cross-threading, improving installation reliability.
- Broad compatibility with standard 6-32 threaded components, making it ideal for replacement or new assemblies.
- Compliance with major industry standards including ASME B18.13, ensuring quality and safety in regulated applications.
Professional Applications & Engineering Value
This zinc-plated steel Phillips pan head screw with an external-tooth lock washer is engineered to address common industrial challenges such as vibration-induced loosening and corrosion. The coarse UNC thread and Class 2A fit provide quick, secure fastening in materials like metal and plastic, reducing assembly errors. Its fully threaded design ensures maximum grip across the entire length, ideal for electrical enclosures, machinery panels, and automotive components. The zinc plating offers a protective barrier against rust, while the lock washer bites into surfaces to maintain clamp force under dynamic loads, delivering reliable performance in demanding environments.
Specification Summary & Compliance
This screw features a 6-32 UNC coarse thread with Class 2A tolerance for precise fit, a length of 5/16 inch, and is fully threaded. It meets ASME B18.13 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industry-standard quality.
