S-90696A165 3-48 x 1 1/2" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
• High tensile strength of 70,000 psi ensures reliable, secure fastening under significant mechanical stress and vibration.
• Superior thread fit with Class 3A tolerance provides precise engagement and reduces the risk of cross-threading during assembly.
• Compact 5/64" hex drive and standard socket head allows for easy installation in confined spaces with standard tools.
• Partially threaded design offers optimal clamping force control, preventing over-tightening and material damage.
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees consistent quality, safety, and environmental responsibility for professional use.
• Rockwell B70 hardness provides excellent wear resistance and durability for long-term performance in demanding applications.

Professional Applications & Engineering Value

This 3-48 UNC Socket Head Cap Screw is engineered to address critical challenges in precision assembly and machinery. The 18-8 Stainless Steel material offers outstanding resistance to rust and oxidation, making it suitable for applications in chemical processing, marine equipment, and food machinery where corrosion resistance is paramount. The coarse UNC thread and Class 3A fit ensure quick, reliable fastening with high repeatability, reducing assembly time and minimizing failure risks in automated systems. Its partially threaded shank design concentrates clamping force precisely, preventing joint loosening under dynamic loads. The compact hex drive and standardized socket head profile facilitate easy installation in tight spaces, enhancing maintenance efficiency for OEMs and MRO professionals.

Specification Summary & Compliance

This screw features a 3-48 UNC coarse thread with a Class 3A thread fit for high precision, a minimum thread length of 5/8", and a right-hand thread direction. It is manufactured to ASME B18.3 specifications, ensuring dimensional accuracy and interchangeability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety standards for hazardous substances.