S-90402A153 6-32 x 1" 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 under dynamic loads
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in industrial environments
- Optimized drive engagement with Phillips No. 2 drive for efficient installation and reduced cam-out risk
- Maximum thread engagement through fully threaded UNC coarse thread design for superior holding power
- High-strength performance with 60,000 psi tensile strength and Rockwell B69 hardness for demanding applications
- Reliable fastening precision with Class 2A thread fit ensuring consistent assembly quality
- Simplified inventory management with ASME B18.13 compliance guaranteeing interchangeability and standardization
Professional Applications & Engineering Value
These zinc-plated steel Phillips pan head screws with integrated external-tooth lock washers provide critical vibration-resistant fastening solutions for industrial machinery, electrical enclosures, and automotive assemblies. The combination of coarse UNC threads and fully threaded design ensures maximum engagement in various materials, while the rounded pan head profile offers a low-profile finish that reduces snagging hazards. The external-tooth lock washer bites into both the bearing surface and screw head, creating a mechanical lock that prevents loosening under cyclic loading conditions. This engineered solution addresses common industrial challenges of joint integrity maintenance in high-vibration environments, making these 6-32 screws ideal for applications where reliability and safety are paramount.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse thread specifications (6-32 thread size, 1" length). These screws meet ASME B18.13 manufacturing standards and comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The zinc-plated steel construction provides consistent mechanical properties with 60,000 psi tensile strength and Rockwell B69 hardness, ensuring reliable performance in industrial fastening applications.
