S-92451A106 4-40 x 1/4" ASME B18.6.3 Brass Slotted Flat Head Screws
Brass Slotted Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance from high-quality brass construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 50,000 PSI tensile rating and Rockwell B50 hardness for reliable load-bearing performance
- Precision thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Streamlined installation featuring standard 82° countersink angle for flush mounting in tapered applications
- Full threading design provides maximum grip length and uniform stress distribution across the entire fastener
- Industry compliance assurance meeting ASME B18.6.3 specifications for dimensional accuracy and performance
- Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing practices
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 4-40 UNC flat head brass screws deliver critical performance advantages where corrosion resistance and electrical conductivity are paramount. The slotted drive style enables precise torque control during installation, while the standard flat head profile with 82° countersink ensures seamless integration in tapered recesses. The fully threaded design maximizes pull-out strength in thin materials, and the Class 2A thread fit provides consistent engagement without binding. Ideal for electrical enclosures, marine hardware, and precision instruments, these screws combine the non-magnetic properties of brass material with coarse thread spacing for rapid assembly in production environments.
Specification Summary & Compliance
This 1/4" length screw features UNC coarse threads with Class 2A tolerance for precise fitment, manufactured to ASME B18.6.3 dimensional standards. The fastener maintains compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety. With right-hand thread direction and standardized flat head profile, these screws ensure interchangeability and reliability across industrial applications requiring consistent performance metrics.
