S-92451A854 1/4"-20 x 1 3/4" ASME B18.6.3 Brass Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to brass construction, ensuring long-term reliability in harsh industrial environments
• Exceptional 50,000 PSI tensile strength provides reliable, heavy-duty fastening for demanding applications
• Class 2A thread fit ensures smooth installation and consistent performance with standard mating components
• 82° countersink angle allows for flush mounting and clean, professional finishes in assembled products
• Full threading along 1 3/4" length maximizes grip strength and load distribution across the entire fastener
• Rockwell B50 hardness maintains structural integrity under vibration and mechanical stress
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental responsibility

Professional Applications & Engineering Value

This 1/4"-20 UNC brass flat head slotted screw delivers critical performance advantages in industrial settings where corrosion resistance and mechanical reliability are paramount. The brass material inherently resists oxidation and galvanic corrosion, making it ideal for marine, electrical, and plumbing applications. The coarse UNC threading with Class 2A fit ensures quick assembly and reduced cross-threading risks, while the flat head design with standard 82° countersink provides a secure, flush fit that prevents snagging and maintains aesthetic integrity. Engineers value its 50,000 PSI tensile strength and full threading for maintaining joint integrity in vibrating machinery and structural assemblies.

Specification Summary & Compliance

This screw features precise 1/4"-20 UNC coarse threading with Class 2A thread fit per standard inch system tolerances. Manufacturing and dimensional compliance adhere to ASME B18.6.3 specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global markets.