S-92453A103 4-40 x 1/8" ASME B18.6.3 Brass Round Head Slotted Screws
Brass Round Head Slotted 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
- Exceptional corrosion resistance from high-quality brass material, ideal for harsh industrial environments
- Superior mechanical strength with 50,000 psi tensile strength and Rockwell B40 hardness for reliable load-bearing performance
- Precision thread engagement with Class 2A thread fit ensuring consistent fastening and vibration resistance
- Broad compatibility with UNC coarse threading and standard slotted drive for universal tool access
- Full-threaded design maximizing grip length and distribution of stress across applications
- Regulatory compliance meeting ASME B18.6.3, RoHS 3, and REACH standards for safe, sustainable use
- Optimized rounded head profile reducing surface damage and providing a finished appearance in assemblies
Professional Applications & Engineering Value
Engineered for demanding industrial and commercial applications, these 4-40 UNC brass slotted rounded head screws deliver reliable performance where corrosion resistance and mechanical integrity are critical. The brass material inherently resists oxidation and galvanic corrosion, making these screws ideal for electrical enclosures, marine hardware, and plumbing systems. With a fully threaded design and coarse thread spacing, installation is swift and secure, minimizing the risk of cross-threading in soft materials or repeated disassembly scenarios. The slotted drive offers broad tool compatibility, while the rounded head distributes clamping force evenly, preventing surface marring. These features collectively address common challenges like fastener failure, maintenance downtime, and compliance requirements in regulated industries.
Specification Summary & Compliance
This rounded head screw adheres to precise dimensional standards, including Class 2A thread fit for consistent engagement and UNC thread type with coarse spacing. Manufacturing and quality are governed by ASME B18.6.3 specifications, ensuring reliability in mechanical assemblies. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting environmentally responsible procurement.
