S-90402A719 M6 x 20 mm ASME B18.13.1M Steel Pan Head Phillips Screws with External-Tooth Lock Washer
Steel Pan Head Phillips Screws with External-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 external-tooth lock washer, preventing loosening in high-stress environments
- Enhanced corrosion protection through zinc-plated steel construction, extending service life in industrial conditions
- High tensile strength (60,000 psi) ensures reliable fastening under substantial mechanical loads
- Optimized drive engagement with Phillips No. 3 drive for efficient installation and reduced cam-out risk
- Full threading (M6 x 1mm) provides maximum grip along the entire 20mm length for superior holding power
- Precision Class 6g thread fit guarantees consistent performance and compatibility with standard metric components
- Rockwell B73 hardness maintains structural integrity against wear and deformation
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these M6 metric screws address critical vibration-induced loosening challenges through their integrated external-tooth lock washer system. The zinc-plated steel construction provides essential corrosion resistance in manufacturing environments, while the coarse thread pitch (1mm) ensures rapid installation and reliable engagement in various materials. The fully threaded design combined with 60,000 psi tensile strength delivers exceptional clamping force for machinery assembly, electrical enclosures, and automotive components where vibration resistance is paramount. The pan head profile with Phillips drive offers flush mounting compatibility and efficient torque transfer during high-volume production operations.
Specification Summary & Compliance
This M6 x 1mm x 20mm screw features precision Class 6g thread fit according to metric standards with coarse thread spacing. Manufacturing specifications comply with ASME B18.13.1M for dimensional accuracy and performance reliability. The product meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring safe use in regulated industries. The external-tooth lock washer (12.1mm OD, 0.75mm thickness) maintains consistent locking performance across the specified hardness range of Rockwell B73.
