S-90608A429 M6 x 40 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• Reliable high-pressure sealing up to 1500 psi, thanks to the integrated Buna-N rubber O-ring, preventing leaks in critical applications.
• Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B85 hardness, ensuring durability under heavy loads.
• Wide temperature tolerance from -40° to 225° F, allowing stable performance in extreme thermal conditions.
• Precise and secure fastening with a Class 6g thread fit and coarse M6 x 1 mm thread, providing easy assembly and vibration resistance.
• Convenient installation and removal using a standard 5 mm hex drive, reducing tool slip and maintenance time.
• Versatile partial threading on a 40 mm length, offering flexibility for various clamping and alignment needs in assemblies.

Professional Applications & Engineering Value

This M6 socket head cap screw is engineered to address common industrial challenges, such as fluid leakage and component failure in demanding settings. Made from 316 stainless steel, it resists corrosion from chemicals and moisture, making it perfect for marine, chemical processing, and food industry applications. The Buna-N rubber O-ring ensures a tight seal against oils and gases, which is critical in hydraulic systems and pressurized equipment. Its coarse metric thread and partially threaded design enhance grip and reduce the risk of loosening under vibration, while the hex socket drive allows for high-torque installation in confined spaces. By combining robust materials with precise thread standards, this screw delivers long-term reliability and reduces maintenance costs in machinery, automotive, and aerospace assemblies.

Specification Summary & Compliance

This screw features a Class 6g thread fit per ISO metric standards, ensuring dimensional accuracy and interchangeability. It complies with ASME B18.3, DIN 912, and ISO 4762 specifications for consistent quality and performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances.