S-91772A681 3/8"-16 x 1 1/2" 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 for extended service life in harsh environments
• Exceptional strength and durability with 70,000 psi tensile strength and Rockwell B70 hardness for reliable, heavy-duty fastening
• Secure and efficient installation featuring a pan head with No. 4 Phillips drive that resists cam-out and provides positive torque transfer
• Optimized thread engagement with UNC coarse threads and Class 2A fit ensuring easy starting and vibration resistance
• Full threading along the 1-1/2" length for maximum grip and holding power across the entire fastener
• Compliance with major industrial standards including ASME B18.6.3 for dimensional consistency and reliability
• Environmentally responsible manufacturing meeting RoHS 3 and REACH regulations for safe use in regulated industries

Professional Applications & Engineering Value

This 3/8"-16 UNC fully threaded screw is engineered to solve critical fastening challenges in demanding industrial environments. The passivated 18-8 stainless steel construction provides exceptional corrosion resistance, making it ideal for applications exposed to moisture, chemicals, or outdoor elements where rust prevention is essential. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance under heavy loads and vibration, while the coarse thread design facilitates quicker assembly and better resistance to loosening. The standard pan head with Phillips drive offers a familiar, secure driving interface that reduces installation time and prevents damage to the fastener head. These screws deliver consistent performance in machinery assembly, structural frameworks, and equipment manufacturing where durability and compliance are paramount.

Specification Summary & Compliance

This screw maintains Class 2A thread fit per UNC standards, ensuring proper clearance and interchangeability. Manufacturing conforms to ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for hazardous substances.