S-90042A313 M1.6 x 4 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments.
• Exceptional sealing performance thanks to the integrated Buna-N rubber O-ring, providing leak-proof integrity up to 1500 psi across a wide temperature range (-40° to 225° F).
• High mechanical strength with 100,000 psi tensile strength and Rockwell B85 hardness, offering dependable load-bearing capacity in compact assemblies.
• Precise thread engagement with Class 6g coarse threads, enabling quick installation and secure fastening in metric applications.
• Reliable drive performance using a standard 1.5 mm hex drive, minimizing stripping and ensuring consistent torque application.
• Broad industry compliance meeting ASME B18.3, DIN 912, and ISO 4762 standards, guaranteeing interchangeability and quality assurance.
• Environmental regulation adherence with RoHS 3 and REACH compliance, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

This M1.6 socket head cap screw delivers critical sealing and fastening solutions in precision engineering applications where space constraints and environmental factors challenge performance. The 18-8 Stainless Steel material provides excellent corrosion resistance, while the Buna-N rubber O-ring ensures reliable sealing against fluids and gases up to 1500 psi, making it ideal for pneumatic systems, fluid handling equipment, and compact electronic enclosures. The coarse thread design with Class 6g tolerance facilitates rapid assembly in metals and plastics, reducing installation time without compromising joint integrity. Its fully threaded configuration and hex drive offer uniform clamping force and easy access in confined spaces, addressing common issues of vibration loosening and leakage in high-pressure or temperature-cycling environments.

Specification Summary & Compliance

This metric fastener features M1.6 x 0.35 mm coarse threads with Class 6g thread fit per ISO standards, ensuring dimensional accuracy and compatibility. Manufactured in accordance with ASME B18.3, DIN 912, and ISO 4762 specifications for socket head cap screws, it guarantees consistent quality and mechanical properties. The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, adhering to environmental and safety regulations for hazardous substances.