S-90402A146 6-32 x 3/8" 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 with integrated external-tooth lock washer that maintains clamping force in high-stress applications
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in demanding environments
- High tensile strength performance rated at 60,000 psi ensures reliable fastening in critical assemblies
- Precision thread engagement with Class 2A fit and UNC coarse threads for quick installation and reduced cross-threading risk
- Optimized drive efficiency with Phillips No. 2 drive that provides excellent torque transfer and prevents cam-out
- Secure regulatory compliance meeting ASME B18.13 standards plus RoHS 3 and REACH environmental directives
- Versatile pan head design with rounded profile and full 3/8" threading for broad surface contact and uniform pressure distribution
Professional Applications & Engineering Value
These zinc-plated steel screws with external-tooth lock washers deliver exceptional engineering value for industrial applications where vibration-induced loosening compromises assembly integrity. The combination of Rockwell B69 hardness and 60,000 psi tensile strength ensures these Phillips pan head screws maintain structural stability under dynamic loads. The UNC coarse threads with Class 2A fit provide rapid installation in sheet metal, machinery, and electronic enclosures while minimizing thread stripping. The zinc plating offers sacrificial corrosion protection, making these fully threaded 6-32 screws ideal for outdoor equipment, automotive components, and industrial machinery where environmental exposure and vibration resistance are critical performance factors.
Specification Summary & Compliance
These rounded head screws feature precision Class 2A thread fit with UNC coarse threads (6-32 size) and 3/8" length. Manufactured to ASME B18.13 specifications with Rockwell B69 hardness and 60,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
