S-90403A148 6-32 x 1/2" ASME B18.13 Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer
Steel Pan Head Phillips Screws with Internal-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
- Vibration-resistant locking with integrated internal-tooth lock washer prevents loosening in high-motion applications
- Superior corrosion protection through zinc-plated steel construction for extended service life in demanding environments
- High tensile strength rating of 60,000 psi ensures reliable performance under heavy loads and stress
- Optimized drive engagement with Phillips No. 2 drive provides secure torque transmission and reduces cam-out risk
- Full-threaded UNC coarse pattern delivers faster installation and superior holding power in various materials
- Precision Class 2A thread fit guarantees consistent engagement and reliable assembly performance
- Industry-standard compliance with ASME B18.13 ensures dimensional accuracy and interchangeability
Professional Applications & Engineering Value
This zinc-plated steel Phillips pan head screw with integrated internal-tooth lock washer addresses critical vibration-induced loosening challenges in industrial assemblies. The combination of Rockwell B69 hardness and 60,000 psi tensile strength provides exceptional durability for machinery, electrical enclosures, and automotive components where constant motion threatens fastener integrity. The fully threaded UNC coarse pattern ensures maximum thread engagement in both metallic and non-metallic substrates, while the rounded pan head profile offers a low-profile installation suitable for confined spaces. Engineered to maintain clamping force under dynamic loads, this vibration-resistant screw delivers reliable performance in manufacturing equipment, transportation systems, and heavy-duty industrial applications where fastener failure is not an option.
Specification Summary & Compliance
This 6-32 x 1/2" screw features precision UNC coarse threads with Class 2A thread fit tolerance for consistent assembly performance. Manufactured to ASME B18.13 specifications for dimensional accuracy and interchangeability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The internal-tooth lock washer is integrally formed from zinc-plated steel for uniform corrosion protection and locking performance.
