S-91772A093 3-48 x 5/16" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under demanding mechanical loads
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• Class 2A thread fit offers consistent, easy installation with standard UNC coarse threading
• Phillips No. 1 drive design enables secure tool engagement and efficient assembly operations
• Fully threaded 5/16" length delivers maximum grip and holding power across the entire fastener
• Compliance with ASME B18.6.3 guarantees dimensional accuracy and interchangeability

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 3-48 UNC pan head machine screw combines passivated 18-8 stainless steel construction with precision coarse threading to solve critical fastening challenges. The material's inherent corrosion resistance prevents degradation in humid or chemical environments, while the fully threaded design ensures uniform stress distribution and maximum clamping force. The rounded pan head profile with Phillips No. 1 drive facilitates quick installation in confined spaces, making it ideal for machinery assembly, electronic enclosures, and automotive components where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This machine screw features 3-48 UNC coarse threads with Class 2A fit for standard dimensional tolerance, manufactured in compliance with ASME B18.6.3 specifications. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. Additional specifications include right-hand thread direction, 0.193" head diameter, and full threading along the 5/16" length.