S-90042A177 M4 x 25 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws
Sealing Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior sealing performance with integrated silicone rubber O-ring that withstands pressures up to 1500 psi, preventing leaks in critical applications
- Exceptional corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
- Precision thread engagement with Class 6g tolerance for consistent fit and reduced risk of cross-threading during installation
- Wide temperature compatibility from -80° to 400°F, maintaining sealing integrity across extreme thermal conditions
- High tensile strength of 100,000 psi provides reliable fastening under substantial mechanical loads
- Optimized drive efficiency with hex socket design and 3mm drive size for secure tool engagement and torque transmission
- Full thread coverage along the 25mm length ensures maximum grip and load distribution across the entire fastener
Professional Applications & Engineering Value
These M4 socket head cap screws deliver exceptional engineering value in demanding industrial applications where fluid containment and pressure integrity are critical. The combination of 18-8 stainless steel material and Class 6g thread precision ensures reliable performance in hydraulic systems, pneumatic equipment, and processing machinery where vibration resistance and sealing reliability are paramount. The integrated silicone rubber O-ring provides immediate pressure sealing without additional components, simplifying assembly while maintaining 1500 psi pressure rating capability. The fully threaded metric screw design with coarse 0.7mm pitch enables rapid installation and consistent clamping force, making these fasteners ideal for maintenance operations and OEM equipment manufacturing where downtime reduction and reliability are essential considerations.
Specification Summary & Compliance
Manufactured to exacting standards with Class 6g thread fit precision and metric thread specifications ensuring dimensional accuracy. Complies with ASME B18.3, DIN 912, and ISO 4762 standards for socket head cap screws. Features Rockwell B85 hardness and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements for industrial use.
