S-91500A301 0-80 x 3/16" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction and passivated finish
• High-strength performance with 70,000 psi tensile strength and Rockwell B80 hardness for reliable, durable fastening
• Precise flush installation with a standard 82° countersink angle and flat head design for smooth, secure surfaces
• Excellent thread engagement provided by fine UNF threads and Class 2A fit, ensuring vibration resistance and secure hold
• Easy installation and removal with No. 0 Phillips drive, reducing tool slippage and assembly time
• Full-length threading for maximum grip and consistent clamping force along the entire 3/16" length
• Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for safe, reliable use

Professional Applications & Engineering Value

These 316 stainless steel flat head screws are engineered to solve critical challenges in demanding industrial applications. The combination of UNF fine threading and Class 2A thread fit provides superior vibration resistance in machinery and equipment where loosening could cause failure. The passivated finish enhances the natural corrosion resistance of 316 stainless steel, making these Phillips drive screws ideal for chemical processing, marine environments, and food processing equipment where moisture and corrosive agents are present. The 82° countersink angle ensures flush mounting in precision assemblies, while the fully threaded design offers maximum holding power in thin materials and tight spaces. These features make them particularly valuable in electronic enclosures, instrumentation, and aerospace components where reliability and corrosion resistance are paramount.

Specification Summary & Compliance

This 0-80 UNF flat head screw maintains Class 2A thread fit tolerances per unified screw thread standards, ensuring precise engagement and consistent performance. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental and safety regulations for industrial fasteners.