S-90317A165 M4 x 8 mm ISO 7045 Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer
Stainless 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 corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
- Enhanced vibration resistance thanks to the integrated 410 stainless steel internal-tooth lock washer, preventing loosening under dynamic loads.
- High mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications.
- Optimized for quick assembly with a coarse M4 x 0.7mm thread and Class 6g fit, reducing installation time and effort.
- Secure and stable fastening provided by the pan head design and Phillips No. 2 drive, ensuring a flush finish and easy torque application.
- Full thread engagement along the 8mm length for maximum grip and load distribution in assembled components.
- Compliance with international standards including ISO 7045, RoHS 3, and REACH, guaranteeing safety and regulatory adherence.
Professional Applications & Engineering Value
This M4 pan head screw with an integrated internal-tooth lock washer is engineered to solve common industrial challenges such as vibration-induced loosening and corrosion in machinery, electronics, and automotive assemblies. Made from 18-8 stainless steel with a passivated finish, it resists oxidation and chemical exposure, extending service life in humid or corrosive settings. The coarse metric thread (M4 x 0.7mm) and Class 6g tolerance ensure precise, reliable fits, reducing the risk of cross-threading and improving assembly efficiency. Ideal for securing components in heavy-duty applications, this fastener combines high tensile strength with the locking action of a 410 stainless steel washer, providing a robust solution for maintaining integrity under stress and thermal cycling.
Specification Summary & Compliance
This screw features a Class 6g thread fit per metric standards, with dimensions of M4 x 0.7mm pitch and 8mm length, ensuring high dimensional accuracy. It is manufactured in compliance with ISO 7045 for pan head screws and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and suitable for global industrial use.
