S-90403A869 M5 x 16 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
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 maintains secure fastening in high-stress environments
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in demanding conditions
- Optimized drive efficiency with Phillips No. 2 drive design ensuring reliable installation and reduced cam-out risk
- Maximum thread engagement through fully threaded M5 coarse pitch (0.8 mm) design providing superior holding power
- Consistent performance under load with 60,000 psi tensile strength and Rockwell B73 hardness for dependable mechanical properties
- Precise dimensional accuracy with Class 6g thread fit ensuring compatibility with standard metric components
- Secure anti-loosening performance through the rounded pan head design distributing clamp load evenly across surfaces
Professional Applications & Engineering Value
These M5 metric screws with coarse thread pitch are engineered to solve critical vibration-induced loosening issues in industrial assemblies. The zinc-plated steel construction combined with the internal-tooth lock washer creates a permanent vibration-resistant solution that outperforms standard fasteners in machinery, equipment manufacturing, and automotive applications. The fully threaded design ensures maximum thread engagement along the entire 16mm length, while the Phillips drive provides reliable installation torque transfer. This combination addresses common failure points in dynamic load environments, making these rounded head screws ideal for applications where maintenance access is limited and reliability is paramount.
Specification Summary & Compliance
Manufactured to precise Class 6g thread fit tolerances with M5-0.8 coarse thread specifications. Compliant with ASME B18.13.1M manufacturing standards for dimensional accuracy and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions. The zinc-plated steel finish provides corrosion resistance while maintaining the specified mechanical properties of 60,000 psi tensile strength and Rockwell B73 hardness.
