S-90403A868 M5 x 12 mm ASME B18.13.1M 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 clamp force in high-stress environments
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in harsh conditions
- High tensile strength performance rated at 60,000 psi ensures reliable fastening in demanding industrial applications
- Optimized thread engagement with Class 6g coarse threads providing excellent grip and faster installation
- Secure Phillips drive compatibility with No. 2 drive size for controlled torque application and reduced cam-out risk
- Complete threading coverage along the 12mm length ensures maximum holding power across the entire fastener
- Industry-standard compliance meeting ASME B18.13.1M specifications for consistent quality and interchangeability
Professional Applications & Engineering Value
These M5 metric screws with zinc-plated steel construction and internal-tooth lock washers address critical vibration-induced loosening in industrial equipment, machinery, and automotive assemblies. The coarse thread pitch (0.8mm) combined with Class 6g tolerance ensures rapid installation while maintaining precise fit in production environments. The rounded pan head design with Phillips drive provides a low-profile solution that withstands repeated stress cycles without compromising fastener integrity. Engineered for vibration-resistant applications where maintaining clamp load is essential, these fully threaded screws deliver reliable performance in manufacturing, equipment maintenance, and assembly operations requiring consistent, long-term fastening solutions.
Specification Summary & Compliance
This M5 x 0.8mm x 12mm fastener features Class 6g thread fit according to metric standards with complete threading along its length. Manufacturing specifications comply with ASME B18.13.1M for dimensional accuracy and performance consistency. The product meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring safe use in regulated industries while maintaining the specified 60,000 psi tensile strength and Rockwell B73 hardness requirements.
