S-90403A157 6-32 x 1 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
- Superior vibration resistance with integrated internal-tooth lock washer that maintains secure fastening in high-stress environments
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in industrial conditions
- Optimized driving efficiency with Phillips No. 2 drive that prevents cam-out and ensures consistent installation torque
- Reliable thread engagement through coarse UNC threading with Class 2A fit for quick assembly and reduced cross-threading risks
- Exceptional mechanical strength with 60,000 psi tensile strength and Rockwell B69 hardness for heavy-duty applications
- Maximum material contact through fully threaded design that provides complete holding power along the entire 1-1/2" length
- Regulatory compliance assurance meeting ASME B18.13 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
These zinc-plated steel pan head Phillips screws with internal-tooth lock washers deliver critical vibration resistance in industrial machinery, electrical enclosures, and automotive assemblies. The coarse UNC threading (6-32 size) with Class 2A fit ensures rapid installation while minimizing thread damage in production environments. The combination of 60,000 psi tensile strength and Rockwell B69 hardness provides reliable performance under dynamic loads, while the zinc plating offers essential corrosion protection for extended service life. The integrated locking mechanism eliminates the need for separate washers, streamlining inventory and reducing assembly time in high-volume manufacturing operations.
Specification Summary & Compliance
This 1-1/2" long screw features precise Class 2A thread fit with UNC coarse threading (6-32 size) and meets ASME B18.13 manufacturing specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Manufacturing standards ensure consistent 0.138" thread diameter and proper internal-tooth lock washer integration (0.288" OD) for reliable performance across industrial applications.
