S-91500A144 6-32 x 1/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Maximum corrosion resistance in harsh environments thanks to 316 Stainless Steel construction and passivated finish
• High-strength performance with 70,000 psi tensile strength and Rockwell B80 hardness for reliable, long-term fastening
• Precise, secure fit ensured by Class 2A thread fit and fully threaded UNC coarse spacing
• Efficient installation and flush mounting with standard 82° countersink and No. 2 Phillips drive
• Broad industrial compatibility with right-hand thread direction and standard flat head profile
• Regulatory peace of mind through compliance with ASME B18.6.3, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This 6-32 UNC flat head screw is engineered to address critical challenges in demanding industrial settings. Constructed from 316 Stainless Steel and enhanced with a passivated finish, it delivers superior resistance to corrosive elements, making it ideal for chemical processing, marine equipment, and outdoor infrastructure. The fully threaded design and coarse thread spacing ensure rapid installation and strong holding power in various materials, while the 82° countersink and Phillips drive allow for a clean, flush finish that prevents snagging and maintains aerodynamic or aesthetic surfaces. These features combine to reduce maintenance frequency and enhance the durability of assemblies exposed to stress and environmental factors.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including Class 2A thread fit and UNC thread type with coarse spacing, ensuring consistent performance and interchangeability. It meets ASME B18.6.3 specifications for manufacturing quality and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility for global industrial use.