S-92196A031 4-40 x 1" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Exceptional mechanical strength with a 70,000 psi tensile strength and Rockwell B70 hardness, ensuring high load-bearing capacity and resistance to deformation.
• Precise and secure fastening achieved with Class 3A thread fit, providing tighter tolerances for reliable, vibration-resistant assemblies.
• Optimized for high-torque applications featuring a standard hex socket head and 3/32" drive, allowing for efficient installation with common tools.
• Full thread engagement along the entire 1" length, offering maximum grip and adjustability in a wide range of material thicknesses.
• Broad industry compliance meeting ASME B18.3 specifications, ensuring interchangeability and performance in professional engineering contexts.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, supporting sustainable and safe production practices.

Professional Applications & Engineering Value

This 4-40 UNC Socket Head Cap Screw is engineered to address critical challenges in industrial and precision assemblies. The 18-8 Stainless Steel material provides excellent resistance to oxidation and corrosive elements, making it suitable for applications in machinery, electronics, and outdoor equipment where moisture or chemicals are present. The coarse UNC thread and Class 3A fit ensure quick assembly and a secure, vibration-resistant hold, reducing the risk of loosening under dynamic loads. Its socket head design with a hex drive allows for compact installation in confined spaces, offering high torque transfer without slippage. Ideal for high-stress applications requiring reliable fasteners with consistent performance, this screw delivers durability and precision where failure is not an option.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 3A thread fit and UNC coarse thread specification, ensuring high accuracy and interchangeability. It is manufactured in compliance with ASME B18.3 for consistent quality and performance. Additionally, the product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards without restricted substances.