S-92360A415 5/16"-18 x 5/8" ASME B18.3, ASTM F835, MIL-DTL-18240 Thread-Locking Steel Button Head Hex-Drive Screws
Thread-Locking Steel Button Head Hex-Drive 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
- Vibration-resistant locking with nylon patch thread locker that maintains secure fastening in dynamic environments
- Exceptional tensile strength of 120,000 psi for reliable performance in high-stress industrial applications
- Corrosion-resistant black-oxide finish on alloy steel for enhanced durability in demanding conditions
- Wide temperature tolerance from -70° to 250°F for stable performance across diverse operating environments
- Precision Class 3A thread fit ensuring consistent engagement and reduced risk of cross-threading
- Easy installation with 3/16" hex drive and rounded button head design requiring minimal clearance
- Coarse UNC threading providing faster assembly and superior resistance to vibration loosening
Professional Applications & Engineering Value
This black-oxide alloy steel rounded head hex screw delivers critical engineering solutions for industrial applications where vibration resistance and structural integrity are paramount. The combination of Rockwell C39 hardness and 120,000 psi tensile strength ensures reliable performance in heavy machinery, automotive assemblies, and construction equipment. The nylon patch thread locker effectively prevents loosening under constant vibration, while the coarse UNC threading facilitates quick installation in production environments. The rounded button head profile with hex drive allows for flush mounting in confined spaces, making it ideal for applications requiring both security and aesthetic considerations. These features collectively address common industrial challenges of fastener failure, maintenance frequency, and assembly efficiency.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit precision and UNC coarse thread spacing, this fully threaded screw guarantees consistent performance. The product complies with ASME B18.3, ASTM F835, and MIL-DTL-18240 specifications, ensuring dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) adherence, confirming the absence of restricted substances for global industrial applications.
