S-93791A586 8-32 x 1 1/2" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel and black-oxide passivated finish, ideal for harsh industrial environments
• Superior tensile strength of 70,000 psi ensures reliable, long-term fastening under high-stress conditions
• Precise Class 3A thread fit provides tight, secure connections with reduced risk of loosening or cross-threading
• Fully threaded design offers maximum grip and uniform load distribution along the entire 1-1/2" length
• Standard 82° countersink angle enables flush mounting for a clean, professional finish in assembled products
• Hex drive (3/32") compatibility allows for high-torque installation with common industrial tools
• Compliance with ASME B18.3 and environmental standards guarantees consistent quality and safe use in regulated applications

Professional Applications & Engineering Value

These 8-32 UNC flat head screws are engineered to address critical fastening challenges in industrial machinery, electronics enclosures, and structural assemblies. The 18-8 stainless steel core provides excellent resistance to oxidation and chemical exposure, while the black-oxide passivated finish enhances surface durability and reduces galling during installation. The coarse UNC thread and Class 3A fit ensure rapid, precise engagement in tapped holes, minimizing assembly time and preventing thread damage. With a Rockwell B55 hardness and 70,000 psi tensile strength, these screws maintain integrity under vibration and dynamic loads, making them ideal for heavy-duty fastening in automotive, aerospace, and manufacturing sectors where reliability is non-negotiable.

Specification Summary & Compliance

This product adheres to ASME B18.3 specifications for dimensional accuracy, featuring a Class 3A thread fit with UNC coarse threading and standard 82° flat head profile. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring no restricted substances are used. The fully threaded 1-1/2" length and hex drive design meet industrial standards for consistent performance in professional applications.