S-90403A193 8-32 x 7/16" ASME B18.13 Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer
Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior vibration resistance with integrated internal-tooth lock washer that prevents loosening under dynamic loads
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in harsh environments
- Optimized drive engagement with No. 2 Phillips head design for efficient installation and reduced cam-out risk
- Reliable thread performance featuring UNC coarse threads with Class 2A fit for secure fastening in various materials
- Maximum holding power achieved through 60,000 psi tensile strength and Rockwell B69 hardness rating
- Simplified inventory management with full compliance to ASME B18.13 manufacturing standards
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for global industrial applications
Professional Applications & Engineering Value
These zinc-plated steel pan head screws with integrated internal-tooth lock washers deliver critical vibration resistance in demanding applications where secure fastening is paramount. The combination of UNC coarse threads and Class 2A thread fit ensures reliable engagement in various substrates, from metal assemblies to industrial equipment. The fully threaded design provides consistent clamping force along the entire 7/16" length, while the zinc plating offers essential corrosion protection for extended service life. Engineered to withstand dynamic loads and harsh operating conditions, these Phillips drive screws are ideal for machinery, electrical enclosures, and automotive components where vibration-induced loosening can compromise system integrity.
Specification Summary & Compliance
This 8-32 x 7/16" screw features precision UNC coarse threads with Class 2A thread fit tolerance, ensuring consistent performance across industrial applications. Manufacturing complies with ASME B18.13 specifications for dimensional accuracy and quality assurance. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for global industrial use.
