S-92453A108 4-40 x 3/8" ASME B18.6.3 Brass Round Head Slotted Screws
Brass Round Head Slotted Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance from high-quality brass material, ensuring long-term reliability in humid or demanding environments
- Excellent electrical conductivity ideal for electronic assemblies and grounding applications where brass's properties are essential
- High tensile strength of 50,000 psi provides reliable fastening integrity under mechanical stress and vibration
- Rockwell B40 hardness offers optimal durability and resistance to wear during installation and service life
- Class 2A thread fit with UNC coarse spacing ensures easy, quick assembly and reduced cross-threading risks
- Fully threaded right-hand design maximizes grip and load distribution across the entire 3/8" length
- Slotted rounded head allows for straightforward installation with standard tools while providing a smooth, snag-free surface
Professional Applications & Engineering Value
These 4-40 UNC brass slotted rounded head screws are engineered to address critical needs in precision industrial and electronic applications. The brass construction inherently resists corrosion and oxidation, making them ideal for marine, electrical, and plumbing systems where moisture exposure is common. The fully threaded design with coarse UNC spacing enables rapid installation in soft materials or pre-tapped holes, reducing assembly time while maintaining Class 2A thread fit accuracy. With a 50,000 psi tensile strength and Rockwell B40 hardness, these screws withstand vibrational forces and mechanical loads in equipment housings, control panels, and instrumentation. The slotted rounded head provides a clean, finished appearance while minimizing protrusion in confined spaces, offering both functional and aesthetic benefits for OEM and MRO professionals.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 standards, these screws feature precise Class 2A thread fit tolerances with UNC coarse thread spacing and right-hand threading. Key dimensions include 3/8" length, 0.211" head diameter, and 4-40 UNC thread size. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence for global industrial supply chains.
