S-92360A617 1/2"-13 x 1 1/4" 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
- Exceptional holding power with 120,000 psi tensile strength for reliable performance in demanding applications.
- Secure vibration resistance provided by the nylon patch thread locker, maintaining clamp load from -70° to 250°F.
- Superior corrosion protection from the black-oxide finish on alloy steel, extending service life in harsh environments.
- Precise fit and easy installation with Class 3A thread fit and 5/16" hex drive for reduced assembly time and stripping risk.
- High durability from Rockwell C39 hardness, resisting wear and deformation under heavy loads.
- Versatile coarse UNC threading ensuring quick engagement and strong fastening in various materials.
- Full threading along the 1-1/4" length for maximum adjustability and grip in deep applications.
Professional Applications & Engineering Value
This black-oxide alloy steel button head screw is engineered to address critical industrial challenges, such as vibration loosening and corrosion in machinery, automotive, and structural assemblies. The nylon patch thread locker ensures reliable locking without compromising the Class 3A UNC coarse thread integrity, even under thermal cycling from -70° to 250°F. Its rounded head design and hex drive facilitate smooth installation in confined spaces, reducing assembly errors. Made from high-strength alloy steel with a protective coating, it delivers long-term performance in harsh conditions, minimizing maintenance downtime and ensuring operational safety for industrial screws in heavy-duty applications.
Specification Summary & Compliance
This screw features precise Class 3A thread fit with UNC coarse spacing and full threading for consistent engagement. It complies with ASME B18.3, ASTM F835, and MIL-DTL-18240 specifications, ensuring manufacturing quality and reliability. Additionally, it is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety standards for global industrial use.
