S-92196A109 4-40 x 7/16" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Superior thread engagement and reliability due to the UNC coarse thread profile with Class 3A fit, minimizing cross-threading and ensuring consistent clamping force.
• High-torque capability and strip resistance from the 3/32" hex drive, allowing for secure installation and removal with standard tools.
• Robust mechanical strength offering a 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications requiring durability.
• Full thread engagement along the entire length (7/16") provides maximum adjustability and holding power in a variety of material thicknesses.
• Guaranteed dimensional consistency and interchangeability through compliance with the stringent ASME B18.3 standard.
• Safe for use in regulated industries as it is fully compliant with RoHS 3 and REACH environmental regulations.

Professional Applications & Engineering Value

This socket head cap screw is engineered to address critical challenges in precision assembly and machinery. The 18-8 Stainless Steel material provides excellent resistance to oxidation and corrosion, making it a reliable choice for industrial fasteners in manufacturing equipment, automotive subsystems, and marine applications where moisture is a concern. The combination of a 4-40 UNC coarse thread and Class 3A fit ensures rapid assembly with high resistance to vibration loosening, reducing maintenance downtime. The 3/32" hex drive and standard socket head profile allow for compact installation in confined spaces, delivering high clamping force without slipping. This makes it an indispensable component for engineers seeking a durable, high-strength fully threaded fastener that maintains integrity under stress.

Specification Summary & Compliance

This screw features a 4-40 UNC thread with a Class 3A precision fit, ensuring tight tolerances and reliable performance. It is manufactured in accordance with the ASME B18.3 specification for dimensional accuracy. The product is confirmed to be compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its adherence to environmental and safety standards for hazardous substances.