S-92453A110 4-40 x 1/2" 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
- Superior corrosion resistance from high-quality brass material, ideal for humid or corrosive industrial environments
- Exceptional tensile strength of 50,000 psi ensures reliable performance under heavy mechanical loads
- Rockwell B40 hardness rating provides excellent durability and wear resistance for long service life
- Class 2A thread fit with UNC coarse threading delivers secure, vibration-resistant fastening in various materials
- Full threading along the 1/2" length enables maximum grip and adjustment flexibility in assembly applications
- Slotted drive design with rounded head allows for easy installation and removal with standard tools
- Compliance with major industry standards including ASME B18.6.3 guarantees consistent quality and performance
Professional Applications & Engineering Value
This 4-40 UNC brass rounded head slotted screw delivers exceptional engineering value through its combination of corrosion-resistant brass construction and precision Class 2A thread fit. The fully threaded design ensures maximum engagement in various substrates, while the rounded head profile with slotted drive provides reliable installation in tight spaces. These brass fasteners are particularly valuable in electrical components, marine equipment, and plumbing systems where corrosion resistance and non-magnetic properties are critical. The coarse UNC threading maintains secure fastening in materials prone to vibration, making these rounded head screws ideal for industrial machinery, automotive assemblies, and precision instrument manufacturing where long-term reliability is paramount.
Specification Summary & Compliance
This 4-40 UNC screw features precise Class 2A thread fit with right-hand coarse threading and maintains dimensional accuracy per ASME B18.6.3 manufacturing standards. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) regulations for hazardous substance restrictions and meets REACH (EC 1907/2006) requirements for chemical safety. Manufactured in the inch system with a 1/2" length and fully threaded configuration, these screws ensure consistent performance across industrial applications requiring reliable brass fastening solutions.
