S-90402A714 M5 x 16 mm ASME B18.13.1M Steel Pan Head Phillips Screws with External-Tooth Lock Washer

Key Features & Benefits at a Glance

• Superior vibration resistance with integrated external-tooth lock washer that maintains clamping force in high-stress environments
• Enhanced corrosion protection through zinc-plated steel construction for extended service life in industrial conditions
• Optimized torque transmission with Phillips No. 2 drive design that prevents cam-out and ensures secure fastening
• Reliable thread engagement through Class 6g metric coarse threading that accommodates typical manufacturing tolerances
• High mechanical strength with 60,000 psi tensile strength and Rockwell B73 hardness for demanding applications
• Immediate full-thread contact with fully threaded design that provides maximum holding power from initial engagement
• Regulatory compliance assurance meeting ASME B18.13.1M standards and environmental regulations for global industrial use

Professional Applications & Engineering Value

These M5 metric screws with external-tooth lock washers address critical vibration-induced loosening in industrial machinery, electrical enclosures, and automotive assemblies. The zinc-plated steel construction provides essential corrosion resistance while maintaining the 60,000 psi tensile strength required for structural applications. The coarse thread pitch (0.8mm) ensures rapid installation and reliable performance in materials where fine threading might strip or fail. The combination of Class 6g thread fit and fully threaded design guarantees consistent clamping force distribution, making these pan head screws ideal for vibration-prone environments where maintenance access is limited and reliability is paramount.

Specification Summary & Compliance

This M5 x 16mm screw features Class 6g thread tolerance with coarse 0.8mm pitch threading and fully threaded design. Manufacturing complies with ASME B18.13.1M standards for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide. The zinc-plated steel construction with external-tooth lock washer provides consistent performance within specified mechanical properties including 60,000 psi tensile strength and Rockwell B73 hardness.