S-92360A240 10-32 x 1/4" 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 locking that maintains secure fastening in high-stress environments
• Exceptional tensile strength of 120,000 psi for reliable performance in demanding industrial applications
• Wide temperature tolerance from -70° to 250°F ensures consistent locking performance across extreme operating conditions
• Precision Class 3A thread fit provides superior engagement and reduced risk of cross-threading during installation
• Corrosion-resistant black-oxide finish on alloy steel substrate extends service life in harsh industrial environments
• Full threading design delivers maximum grip length and holding power across the entire fastener length
• Hex drive compatibility with standard 1/8" tools enables quick installation and high torque application

Professional Applications & Engineering Value

These 10-32 UNF nylon patch lock screws with rounded button head design provide critical vibration-resistant fastening solutions for industrial machinery, automotive assemblies, and electronic enclosures. The black-oxide alloy steel construction combined with permanent nylon patch thread locking technology effectively prevents loosening under continuous vibration and thermal cycling. The fine thread configuration and Class 3A thread fit ensure precise engagement in tapped holes, reducing installation errors while the fully threaded design maximizes clamping force distribution. Engineered to maintain locking integrity across a broad temperature range from -70° to 250°F, these screws deliver reliable performance in applications where thermal expansion and contraction would compromise standard fasteners.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit precision and UNF fine thread specifications. Compliant 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 right-hand thread direction with fully threaded 1/4" length and Rockwell C39 hardness for optimal durability.