S-92446A119 4-40 x 1 1/2" ASME B18.6.3 Brass Pan Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to high-quality brass construction, ensuring long-term reliability in harsh environments
• Exceptional tensile strength of 50,000 psi provides secure, vibration-resistant fastening for demanding applications
• Class 2A thread fit with UNC coarse threading enables quick installation and superior grip in various materials
• Rockwell B40 hardness rating maintains thread integrity and prevents stripping during repeated use
• Slotted pan head design allows for easy installation with standard screwdrivers while providing a low-profile finish
• Full 1-1/2" length with complete threading offers maximum engagement depth and versatile fastening options
• Comprehensive regulatory compliance including ASME B18.6.3, RoHS 3, and REACH ensures safety and environmental responsibility

Professional Applications & Engineering Value

This 4-40 UNC brass slotted pan head screw delivers exceptional engineering value through its corrosion-resistant brass material and precision Class 2A thread fit. The combination of 50,000 psi tensile strength and Rockwell B40 hardness ensures reliable performance in demanding industrial environments where vibration resistance and durability are critical. The rounded pan head profile with slotted drive provides both aesthetic appeal and practical installation benefits, while the coarse UNC threading facilitates quick assembly in various substrates. These brass fasteners are particularly valuable in electrical applications, marine environments, and plumbing systems where corrosion resistance prevents failure and maintenance downtime. The fully threaded design across the entire 1-1/2" length maximizes holding power and distribution of clamping forces.

Specification Summary & Compliance

This screw maintains precise Class 2A thread fit tolerances according to UNC coarse thread standards with a thread size of 4-40. Manufacturing and dimensional specifications strictly adhere to ASME B18.6.3 standards for slotted head screws. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and meets REACH (EC 1907/2006) requirements for chemical safety. Additional specifications include right-hand thread direction, standard rounded head profile, and pan head style with 0.219" head diameter and 0.068" head height.