S-90403A863 M4 x 10 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 washers that maintain secure fastening in high-motion environments
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in industrial conditions
- High-strength performance delivering 60,000 psi tensile strength and Rockwell B73 hardness for demanding applications
- Reliable thread engagement with Class 6g coarse threads ensuring consistent mating and reduced cross-threading risks
- Optimized drive efficiency featuring Phillips No. 2 drive for secure tool engagement and reduced cam-out
- Full-thread design providing maximum grip length and load distribution across the entire fastener
- Regulatory compliance assurance meeting ASME B18.13.1M standards and environmental regulations for global applications
Professional Applications & Engineering Value
These M4 metric screws with internal-tooth lock washers solve critical vibration-induced loosening problems in industrial machinery, automotive assemblies, and electronic enclosures. The zinc-plated steel construction provides essential corrosion resistance for harsh environments, while the coarse thread pitch (0.7mm) ensures rapid installation and reliable performance in softer materials. The combination of fully threaded design and Class 6g thread fit guarantees precise engagement and consistent clamping force, making these rounded head Phillips screws ideal for applications where vibration resistance and mechanical integrity are paramount. The integrated locking mechanism eliminates the need for separate anti-vibration components, streamlining assembly processes while maintaining 60,000 psi tensile strength for structural applications.
Specification Summary & Compliance
Manufactured to exacting metric dimensions with M4 x 0.7mm coarse threads meeting Class 6g tolerance standards. These fully threaded screws feature a 10mm length with pan-style rounded head profile and Phillips No. 2 drive. Compliance includes ASME B18.13.1M mechanical specifications, RoHS 3 (2015/863/EU) environmental standards, and REACH (EC 1907/2006) chemical safety regulations, ensuring global acceptability for industrial fastener applications.
