S-95198A273 4-40 x 1/4" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws
Sealing Socket Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior sealing performance with integrated Buna-N rubber O-ring, preventing leaks in high-pressure environments up to 1500 psi
- Exceptional corrosion resistance due to 18-8 stainless steel construction, ensuring longevity in harsh industrial conditions
- Precise thread engagement with Class 3A fit and UNC coarse threads, providing reliable fastening and vibration resistance
- High tensile strength of 100,000 psi and Rockwell B85 hardness, offering durability for heavy-duty applications
- Wide temperature tolerance from -40° to 225°F, maintaining seal integrity across diverse operating environments
- Standard hex drive design for easy installation with common tools, reducing assembly time and labor costs
- Compliance with major international standards including ASME B18.3, DIN 912, and ISO 4762, ensuring quality and interchangeability
Professional Applications & Engineering Value
These socket head cap screws with integrated Buna-N rubber O-rings solve critical sealing challenges in high-pressure industrial systems. The 18-8 stainless steel construction provides excellent corrosion resistance for demanding environments, while the Class 3A thread fit ensures precise engagement that prevents loosening under vibration. The UNC coarse threads facilitate quick assembly in time-sensitive production environments. Engineered to withstand pressures up to 1500 psi and temperatures from -40° to 225°F, these sealing screws deliver reliable performance in hydraulic systems, pneumatic equipment, and fluid handling applications where leak prevention is critical to operational safety and efficiency.
Specification Summary & Compliance
This socket head cap screw features precise 4-40 UNC thread with Class 3A fit for superior thread engagement. Manufactured to ASME B18.3, DIN 912, and ISO 4762 specifications, ensuring dimensional accuracy and interchangeability. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for industrial components.
