S-92949A852 5/16"-18 x 7/16" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws
Stainless 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
- Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
- High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for demanding industrial applications.
- Precise, secure fastening achieved through Class 3A thread fit, minimizing the risk of loosening under vibration.
- Efficient installation and removal with a 3/16" hex drive, allowing for high torque application and quick assembly.
- Optimized for coarse threading with UNC thread form, enabling faster installation and better performance in softer materials.
- Fully threaded design provides consistent holding power along the entire 7/16" length for versatile fastening.
- Compliant with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence.
Professional Applications & Engineering Value
Engineered for robust performance, these 5/16"-18 UNC Rounded Head Hex Drive Screws are crafted from 18-8 Stainless Steel with a passivated finish to combat corrosion in demanding settings like marine, chemical processing, and outdoor machinery. The Class 3A thread fit and coarse thread spacing ensure a tight, reliable connection that resists vibration-induced failure, critical in assembly lines and heavy equipment. With a rounded button head and hex drive, they offer a low-profile, flush fit and easy access for tools, reducing installation time and improving workflow efficiency in tight spaces. Ideal for industrial fastening where strength, durability, and compliance are non-negotiable.
Specification Summary & Compliance
This screw features a 5/16"-18 UNC thread with Class 3A precision fit and coarse spacing, ensuring dimensional accuracy per standard specifications. It is manufactured in compliance with ASME B18.3 and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental adherence for global industrial use.
