S-90114A608 1/4"-20 x 3/8" ASME B18.6.3 Brass Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with high-quality brass construction for long-lasting performance in demanding environments
• Enhanced driving control with the fillister head design providing deeper slot engagement and reduced cam-out risk
• Reliable thread engagement through Class 2A fit UNC coarse threading ensuring consistent fastening in various materials
• Exceptional mechanical strength delivering 50,000 psi tensile strength and Rockwell B40 hardness for heavy-duty applications
• Full threading coverage along the 3/8" length for maximum grip and load distribution across the entire fastener
• Industry compliance assurance meeting ASME B18.6.3 specifications for dimensional accuracy and performance standards
• Environmental regulation compliance with RoHS 3 and REACH adherence for safe use in regulated industries

Professional Applications & Engineering Value

This 1/4-20 UNC brass slotted screw with its fillister head profile addresses critical engineering challenges in industrial assembly. The rounded head design combines aesthetic appeal with functional superiority, featuring a high, narrow profile that provides exceptional clearance while the deep slotted drive ensures positive tool engagement during installation. The brass material offers inherent corrosion resistance, making it ideal for electrical components, marine equipment, and plumbing systems where moisture resistance is paramount. The coarse UNC threading with Class 2A fit prevents cross-threading in soft materials and ensures reliable fastening in vibration-prone environments. With full threading along its 3/8" length, this fastener delivers uniform stress distribution, preventing localized failure points in critical assemblies across manufacturing, automotive, and electronics industries.

Specification Summary & Compliance

This fastener maintains precise Class 2A thread fit tolerances according to UNC standards, ensuring consistent performance across production runs. The screw conforms to ASME B18.6.3 manufacturing specifications for dimensional accuracy and mechanical properties. Environmental compliance is verified through RoHS 3 (2015/863/EU) adherence for hazardous substance restrictions and REACH (EC 1907/2006) compliance for chemical safety. The combination of 1/4"-20 UNC coarse threading, 0.414" head diameter, and 3/8" length provides standardized compatibility with industry-standard components and tooling.