S-91241A807 M4 x 8 mm ASME B18.13 Stainless Steel Pan Head Phillips Screws with Spring Lock Washer
Stainless Steel Pan Head Phillips Screws with Spring 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 corrosion resistance through 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments
- Enhanced vibration resistance with integrated 410 stainless steel spring lock washer, preventing loosening in dynamic applications
- High mechanical strength with 70,000 psi tensile strength and Rockwell B80 hardness for demanding load requirements
- Precise thread engagement with Class 6g fit and coarse thread pitch for quick assembly and secure fastening
- Optimized drive performance featuring Phillips No. 2 drive for efficient installation with standard tools
- Full thread coverage along the 8mm length maximizes grip strength and distribution
- Regulatory compliance with ASME B18.13 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
This M4 x 0.7mm metric screw with pan head design and integrated spring lock washer addresses critical industrial challenges where vibration-induced loosening and corrosion compromise assembly integrity. The 18-8 stainless steel core combined with passivated finish provides exceptional resistance to oxidation and chemical exposure, making it ideal for outdoor equipment, machinery, and electronic enclosures. The coarse thread pitch ensures rapid installation while maintaining Class 6g tolerance for precise fit. The 410 stainless steel lock washer maintains constant tension under dynamic loads, eliminating the need for separate locking components and reducing assembly time in automotive, aerospace, and industrial manufacturing applications where reliability is paramount.
Specification Summary & Compliance
This fully threaded M4 screw features 0.7mm coarse pitch with Class 6g thread fit per metric standards. Manufacturing complies with ASME B18.13 specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring safe use in regulated industries. Components include 18-8 stainless steel screw with passivated finish and 410 stainless steel spring lock washer with matching surface treatment.
