S-90403A880 M8 x 30 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, preventing loosening in high-stress applications
- Enhanced corrosion protection through zinc-plated steel construction, extending service life in industrial environments
- High mechanical strength with 60,000 psi tensile strength and Rockwell B73 hardness for demanding applications
- Reliable thread engagement with Class 6g fit and coarse 1.25mm pitch for quick assembly and secure fastening
- Optimized drive performance featuring Phillips No. 4 drive for efficient installation with standard tools
- Full-thread design ensures maximum grip along the entire 30mm length for superior holding power
- Comprehensive compliance meeting ASME B18.13.1M standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these M8 metric screws with internal-tooth lock washers provide critical vibration resistance in machinery, equipment assembly, and automotive applications. The zinc-plated steel construction offers excellent corrosion protection while maintaining the 60,000 psi tensile strength required for heavy-duty fastening. The Class 6g thread fit and coarse 1.25mm pitch ensure reliable installation in various materials, reducing assembly time and preventing cross-threading. The combination of fully threaded design and Rockwell B73 hardness delivers consistent performance in high-vibration settings where fastener integrity is paramount to operational safety and equipment longevity.
Specification Summary & Compliance
This M8 x 1.25mm x 30mm screw features Class 6g thread tolerance with coarse spacing and full threading. Manufacturing complies with ASME B18.13.1M specifications for dimensional accuracy and performance. The product meets environmental standards including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring safe use in regulated industries. The zinc-plated finish and internal-tooth lock washer are integral to the fastener's performance and compliance with industrial fastening requirements.
