S-92360A326 1/4"-20 x 1" ASME B18.3, ASTM F835, MIL-DTL-18240 Thread-Locking Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with a durable nylon patch that maintains secure fastening from -70° to 250°F, preventing loosening in dynamic environments.
• Exceptional strength and durability from alloy steel construction, offering 120,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications.
• Precise thread engagement with Class 3A fit and UNC coarse threads, ensuring reliable, easy installation and reduced cross-threading risks.
• Corrosion-resistant black-oxide finish enhances longevity and provides a professional appearance in harsh industrial settings.
• Easy installation and removal thanks to the standard hex drive (5/32"), allowing for efficient torque application with common tools.
• Full threading for maximum grip along the entire 1" length, distributing load evenly and improving joint integrity.
• Compliance with major industry standards including ASME B18.3, ASTM F835, and MIL-DTL-18240, ensuring consistent quality and reliability.

Professional Applications & Engineering Value

This black-oxide alloy steel rounded head screw is engineered to address critical challenges in industrial assembly, such as vibration-induced loosening and corrosion. The nylon patch thread locker effectively secures fasteners in machinery, automotive, and electronics, where temperature fluctuations from -70° to 250°F are common. Its UNC coarse threads and Class 3A fit provide quick, accurate installation, reducing assembly time and minimizing failure risks. The rounded button head design offers a low-profile, snag-resistant finish, ideal for applications requiring smooth surfaces. Made from high-strength alloy steel, it supports heavy loads and repetitive stress, making it a reliable choice for industrial fasteners in demanding environments.

Specification Summary & Compliance

This screw features precise UNC coarse threads with a Class 3A fit for tight tolerances and secure fastening. It complies with ASME B18.3, ASTM F835, and MIL-DTL-18240 specifications, ensuring adherence to rigorous manufacturing standards. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for global industrial use.