S-92360A297 1/4"-20 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 locker that maintains secure fastening in dynamic environments
• Exceptional durability from Black-Oxide Alloy Steel construction providing corrosion resistance and extended service life
• Superior load-bearing capacity with 120,000 psi tensile strength for demanding industrial applications
• Precise thread engagement through Class 3A thread fit ensuring reliable, consistent performance
• Wide temperature tolerance from -70° to 250°F for stable performance across diverse operating conditions
• Easy installation and removal with 5/32" hex drive design providing positive torque application
• Comprehensive compliance meeting MIL-DTL-18240, ASME B18.3, and ASTM F835 specifications for guaranteed quality

Professional Applications & Engineering Value

These 1/4-20 UNC screws with Nylon patch locking technology deliver critical vibration resistance in machinery, automotive, and aerospace assemblies where loosening under stress poses significant failure risks. The Black-Oxide Alloy Steel construction combined with Class 3A thread fit ensures precise engagement and corrosion protection in harsh environments. The rounded button head profile with hex drive facilitates installation in confined spaces while maintaining structural integrity. Engineered for high-temperature applications up to 250°F, these fully threaded screws provide uniform clamping force distribution, making them ideal for critical joints in industrial equipment, electronic enclosures, and transportation systems where reliability is paramount.

Specification Summary & Compliance

Manufactured to exacting Class 3A thread tolerances with UNC coarse threading for superior engagement. Complies with ASME B18.3, ASTM F835, and MIL-DTL-18240 specifications. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. Features fully threaded design with right-hand thread direction and maintains Rockwell C39 hardness throughout the fastener.