S-91858A194 8-32 x 1/2" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and passivated finish, ideal for harsh environments and extended service life
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B80 hardness for reliable, heavy-duty fastening
• Precise Class 2A thread fit with UNC coarse threads ensuring easy installation, secure engagement, and vibration resistance
• Fully threaded design provides consistent holding power along the entire 1/2" length for maximum grip in various material thicknesses
• Standard 82° countersink angle and flat head allows for a flush, professional finish that minimizes protrusion and snagging risks
• Compliance with ASME B18.6.3 guarantees dimensional accuracy, interchangeability, and adherence to recognized industrial standards
• Environmental responsibility with RoHS 3 and REACH compliance, meeting strict regulations for hazardous substance restrictions

Professional Applications & Engineering Value

These 8-32 UNC flat head screws are engineered to address critical challenges in industrial settings where corrosion resistance and mechanical reliability are paramount. The 316 Stainless Steel material, enhanced by a passivated finish, provides exceptional protection against corrosive agents, making these screws ideal for marine, chemical processing, and outdoor applications. The coarse UNC threads and Class 2A fit facilitate quick assembly and reduce cross-threading risks, while the fully threaded 1/2" length ensures uniform load distribution. The flat head with 82° countersink sits flush with surfaces, preventing interference in machinery and equipment. By meeting ASME B18.6.3 specifications, these screws deliver consistent performance in heavy-duty fastening tasks, from assembling enclosures to securing structural components, thereby minimizing downtime and maintenance costs.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including UNC coarse threads with a Class 2A thread fit for reliable tolerance and ease of use. Manufacturing and quality are governed by ASME B18.6.3, ensuring uniformity and performance. Environmental and safety compliance is confirmed through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming the absence of restricted substances and supporting sustainable procurement practices.