S-92360A101 2-56 x 1/8" 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 permanent nylon patch thread locker prevents loosening under dynamic loads
- Exceptional temperature tolerance maintains secure fastening from -70° to 250° F in demanding environments
- Superior strength characteristics with 120,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications
- Precise thread engagement with Class 3A fit ensures reliable assembly and consistent clamping force
- Enhanced corrosion protection through black-oxide coating on alloy steel substrate
- Optimized drive efficiency with 0.050" hex drive providing positive torque transmission
- Full-thread design delivers maximum thread engagement along the entire fastener length
Professional Applications & Engineering Value
These 2-56 UNC coarse thread screws with nylon patch locking technology solve critical vibration-induced loosening problems in industrial assemblies. The black-oxide alloy steel construction provides excellent durability while the rounded button head profile offers a low-profile finish that minimizes snagging in confined spaces. Engineered for high-stress applications where temperature fluctuations from -70° to 250° F would compromise conventional fasteners, these screws maintain consistent clamping force in machinery, electronic enclosures, and precision equipment. The fully threaded design ensures maximum engagement in thin materials, while the Class 3A thread fit guarantees precise installation with standard hex drivers, reducing assembly time and improving manufacturing efficiency.
Specification Summary & Compliance
Manufactured to exacting Class 3A thread fit standards with UNC coarse thread spacing for optimal engagement. Complies with ASME B18.3, ASTM F835, and MIL-DTL-18240 specifications, ensuring consistent quality and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. The inch system measurement provides dimensional accuracy across all critical parameters including head diameter (0.164"), length (1/8"), and drive size (0.050").
