S-92451A099 3-48 x 3/4" ASME B18.6.3 Brass Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with high-quality brass construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 50,000 psi tensile strength and Rockwell B50 hardness for reliable load-bearing performance
• Precision thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
• Flush mounting capability with standard 82° countersink angle and flat head design for seamless surface integration
• Full threading coverage across the 3/4" length provides maximum grip strength in various material thicknesses
• Industry-standard compliance with ASME B18.6.3 specifications for guaranteed dimensional accuracy and interchangeability
• Environmental responsibility with RoHS 3 and REACH compliance meeting strict international regulatory requirements

Professional Applications & Engineering Value

These 3-48 UNC brass flat head screws deliver critical engineering advantages in demanding applications where corrosion resistance and precise fastening are paramount. The combination of brass material properties and Class 2A thread fit ensures reliable performance in electrical components, marine equipment, and plumbing systems where galvanic corrosion must be prevented. The slotted drive style provides straightforward installation while the standard flat head profile with 82° countersink angle creates flush surfaces in precision assemblies. With fully threaded construction and coarse thread spacing, these fasteners maintain superior holding power in soft materials and prevent loosening under vibration, making them ideal for industrial machinery, instrumentation, and maintenance applications requiring durable, compliant fastening solutions.

Specification Summary & Compliance

This 3-48 UNC flat head screw maintains precise Class 2A thread fit tolerances per ASME B18.6.3 manufacturing standards, ensuring consistent dimensional accuracy and reliable performance. The inch-system fasteners feature right-hand thread direction with coarse thread spacing and are manufactured to meet rigorous industry specifications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees these components are free from hazardous substances, making them suitable for global industrial applications requiring certified, environmentally responsible fastening solutions.