S-92360A138 6-32 x 1/2" ASME B18.3, ASTM F835, MIL-DTL-18240 Thread-Locking Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Permanent vibration resistance with nylon patch thread locker that maintains secure fastening from -70° to 250° F, preventing loosening in demanding environments
• Exceptional strength and durability from alloy steel construction with 120,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications
• Superior thread engagement with Class 3A thread fit and UNC coarse threads ensuring reliable installation and reduced cross-threading risk
• Easy installation and removal using standard 5/64" hex drive with rounded button head design for flush mounting and tool accessibility
• Corrosion-resistant black-oxide coating providing enhanced surface protection while maintaining dimensional accuracy
• Full threading coverage along the entire 1/2" length for maximum grip and load distribution across joined materials
• Regulatory compliance assurance meeting major industrial standards and environmental regulations for global supply chain compatibility

Professional Applications & Engineering Value

These black-oxide alloy steel rounded head screws deliver critical performance where vibration resistance and permanent locking capability are essential. The nylon patch thread locker technology eliminates the need for separate locking washers or adhesives, providing reliable fastening in industrial equipment, machinery assemblies, and electronic enclosures subject to thermal cycling. The UNC coarse thread design ensures rapid installation in various materials while the Class 3A thread fit guarantees precise engagement without galling. The rounded button head profile offers a low-profile finish that clears obstructions while the hex drive accommodates high-torque applications. Engineered for high-stress environments, these screws maintain integrity across extreme temperature ranges from -70° to 250° F, making them ideal for automotive, aerospace, and heavy machinery applications where fastener failure is not an option.

Specification Summary & Compliance

Manufactured to precision Class 3A thread tolerances with UNC coarse thread specifications (6-32 thread size). Complies with ASME B18.3, ASTM F835, and MIL-DTL-18240 manufacturing standards. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Features fully threaded design with right-hand thread direction and standardized rounded head profile for consistent performance across industrial applications.