S-96452A578 5/16"-18 x 1/2" ASME B18.3, ASTM F835 Steel Button Head Torx Plus Screws
Steel Button Head Torx Plus 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
- Superior torque transmission with Torx Plus IP40 drive, reducing cam-out and tool wear for reliable installation
- Exceptional tensile strength of 120,000 psi ensures high load-bearing capacity in demanding industrial environments
- Enhanced corrosion resistance from Black-Oxide coating, extending service life in various operating conditions
- Precise Class 3A thread fit provides secure fastening with minimal play, improving joint integrity
- Full threading design allows for maximum engagement along the entire length, distributing stress evenly
- Rounded button head profile offers a low-profile, aesthetically clean finish while reducing snagging risks
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards for global applications
Professional Applications & Engineering Value
These Black-Oxide Alloy Steel Rounded Head Screws are engineered to address critical challenges in industrial assembly and heavy-duty machinery. The Torx Plus IP40 drive minimizes slippage under high torque, preventing damage to fasteners and tools during repetitive use. With a Rockwell C39 hardness and 120,000 psi tensile strength, they withstand extreme vibrations and dynamic loads, reducing failure risks in automotive, aerospace, and construction equipment. The 5/16"-18 UNC coarse thread ensures quick installation and robust holding power in metals and composites, while the fully threaded design enhances grip in variable material thicknesses. Ideal for applications requiring durable, high-performance fasteners that meet stringent industry specifications.
Specification Summary & Compliance
This screw features a 5/16"-18 UNC thread with Class 3A fit for precise dimensional accuracy and reliable engagement. Manufacturing adheres to ASME B18.3 standards, ensuring consistent quality and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances for safe use in global markets.
