S-91255A716 1/2"-13 x 1 1/2" ASTM F835 Steel Button Head Hex-Drive Screws
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 corrosion resistance with black-oxide coating, ideal for harsh industrial environments and reducing maintenance costs.
- High tensile strength of 120,000 psi ensures reliable performance under heavy loads, minimizing failure risks.
- Precise Class 3A thread fit provides secure, vibration-resistant connections for critical assemblies.
- Fully threaded UNC coarse design allows for faster installation and superior grip in various materials.
- Rockwell C39 hardness rating delivers excellent durability and wear resistance over extended use.
- 5/16" hex drive compatibility enables easy torque application with standard tools, speeding up workflows.
- Compliance with ASME B18.3 and ASTM F835 guarantees consistent quality and interoperability in regulated applications.
Professional Applications & Engineering Value
This black-oxide alloy steel rounded head hex screw is engineered to address common industrial challenges, such as vibration loosening and corrosion in demanding settings. Its UNC coarse threads and fully threaded design ensure rapid installation and robust holding power in machinery, structural frameworks, and heavy equipment. The rounded button head offers a low-profile, safe finish that reduces snagging risks, while the high tensile strength and hardness resist deformation under stress. Ideal for automotive, construction, and manufacturing sectors, this screw provides long-term reliability by meeting strict ASME B18.3 and ASTM F835 standards, ensuring consistent performance in critical fastening applications.
Specification Summary & Compliance
This screw features precise Class 3A thread fit and UNC coarse threading with dimensions of 1/2"-13 thread size and 1-1/2" length. It complies with ASME B18.3 and ASTM F835 manufacturing specifications, and is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental safety and regulatory adherence for global industrial use.
