S-91255A712 1/2"-13 x 1" 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 tensile strength of 120,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant connections in demanding environments.
- Black-oxide coating on alloy steel enhances corrosion resistance and durability, extending service life even in harsh conditions.
- 5/16" hex drive with button head design allows for easy installation and a low-profile, aesthetically clean finish.
- Fully threaded 1/2"-13 UNC coarse thread offers quick assembly and strong holding power across the entire length.
- Compliance with ASME B18.3 and ASTM F835 guarantees consistent quality and interoperability with standard components.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
These black-oxide alloy steel screws are engineered to address common industrial challenges such as vibration loosening and corrosion in heavy machinery, automotive assemblies, and structural frameworks. The Class 3A thread fit and coarse UNC threading provide excellent grip and ease of installation, minimizing assembly time while maximizing joint integrity. With a rounded button head and hex drive, they offer a secure, low-profile fastening solution that withstands high tensile loads up to 120,000 psi, making them ideal for applications where reliability and durability are critical. The fully threaded design ensures uniform stress distribution, reducing the risk of strip-out and enhancing long-term performance in industrial fastening systems.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC thread with Class 3A fit for precise tolerance, coarse thread spacing, and a length of 1 inch. It meets ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and performance reliability. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety standards for industrial use.
