S-90042A436 M3 x 12 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Viton® fluoroelastomer O-ring provides reliable sealing against fluids and gases, ideal for high-pressure applications up to 1500 psi.
• Exceptional Temperature Resistance: Withstands extreme conditions from -20° to 400° F, ensuring stability in harsh industrial environments.
• High Tensile Strength & Durability: 100,000 psi tensile strength and Rockwell B85 hardness offer robust, long-lasting fastening for demanding assemblies.
• Precision Thread Fit: Class 6g thread ensures consistent, secure engagement with coarse M3 x 0.5 mm threads, reducing the risk of stripping.
• Corrosion-Resistant Material: 18-8 stainless steel construction provides excellent resistance to rust and corrosion, extending service life.
• Standardized Socket Drive: 2.5 mm hex drive allows for easy installation and removal with standard tools, improving assembly efficiency.
• Compliance with International Standards: Meets DIN 912, ISO 4762, and ASME B18.3 specifications, ensuring reliability and interchangeability in global applications.

Professional Applications & Engineering Value

This M3 socket head cap screw is engineered to address critical challenges in industrial settings where sealing integrity and mechanical strength are paramount. The combination of 18-8 stainless steel and a Viton® fluoroelastomer O-ring delivers exceptional resistance to high pressure (up to 1500 psi) and a wide temperature range (-20° to 400° F), making it ideal for applications in automotive, aerospace, and hydraulic systems. The coarse metric thread (M3 x 0.5 mm) with Class 6g fit ensures quick, reliable fastening in materials like metals and plastics, reducing assembly time while preventing leaks. Its hex socket drive (2.5 mm) facilitates secure tool engagement, minimizing slippage and damage in confined spaces. By integrating these features, this fastener enhances operational reliability in environments exposed to chemicals, moisture, and thermal cycling, supporting efficient maintenance and reducing downtime.

Specification Summary & Compliance

This socket head cap screw features precise dimensions: M3 x 0.5 mm coarse thread with Class 6g tolerance for accurate fit, a length of 12 mm, and a head diameter of 5.5 mm. It complies with DIN 912, ISO 4762, and ASME B18.3 standards, ensuring consistent performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.