S-90042A478 M6 x 16 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with Viton® fluoroelastomer O-ring that maintains integrity under extreme conditions from -20° to 400°F
• Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
• High mechanical strength with 100,000 psi tensile strength and Rockwell B85 hardness for reliable load-bearing applications
• Pressure-tight sealing capability handling up to 1500 psi maximum pressure for demanding fluid systems
• Precision thread engagement with Class 6g thread fit ensuring consistent, reliable fastening in metric applications
• Easy installation and removal with standard hex socket drive requiring only 5mm hex key for efficient maintenance
• Maximum compatibility with 6.655 mm maximum hole diameter for versatile application across various assemblies

Professional Applications & Engineering Value

This M6 socket head cap screw with integrated Viton® fluoroelastomer O-ring delivers critical sealing solutions for industrial applications where fluid containment and temperature resistance are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance in chemical processing, marine, and food industry environments, while the coarse thread metric design with Class 6g thread fit ensures reliable engagement in high-vibration applications. Engineered for hydraulic systems, pneumatic equipment, and pressure vessels, this sealing cap screw eliminates the need for separate gaskets, reducing assembly time and potential leak points. The combination of temperature resistance from -20° to 400°F and high-pressure capability up to 1500 psi makes it ideal for critical sealing applications in automotive, aerospace, and industrial machinery where reliability cannot be compromised.

Specification Summary & Compliance

This metric socket head cap screw features M6 x 1 mm coarse thread with Class 6g thread fit precision and 16 mm length, manufactured to exacting dimensional standards. The fastener complies with ASME B18.3, DIN 912, and ISO 4762 specifications for dimensional accuracy and performance. Environmental and safety compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance compliance for global industrial applications. The fully threaded design provides consistent engagement throughout the fastener length, while the standard hex socket drive profile ensures compatibility with common 5mm hex key tools.