S-91236A685 7/16"-14 x 4" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws
Low-Strength Steel Hex Head 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 60,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Zinc plating provides superior corrosion resistance, extending the service life of the screw in various industrial environments.
- Rockwell B69 hardness offers excellent durability and resistance to wear, maintaining fastener integrity under stress.
- Class 2A thread fit with UNC coarse threads allows for easier and faster assembly, minimizing installation time and effort.
- Partially threaded design provides optimal grip and clamping force where needed, enhancing joint stability.
- Compliance with ASME B18.2.1 and ASTM A307 standards guarantees consistent quality and interchangeability for industrial use.
- External hex drive and hex head enable simple installation with common tools, improving efficiency in maintenance and assembly tasks.
Professional Applications & Engineering Value
This 7/16"-14 UNC hex head screw is engineered from ASTM A307 steel with a zinc-plated finish to address common industrial challenges like corrosion and vibration loosening. Its coarse thread and Class 2A fit ensure quick, secure fastening in structural assemblies, machinery, and heavy equipment, reducing downtime. The partially threaded configuration concentrates clamping force effectively, preventing joint slippage in high-stress environments. Ideal for construction, automotive, and manufacturing sectors, it delivers reliable performance where tensile strength and compliance with ASME B18.2.1 are critical for safety and longevity.
Specification Summary & Compliance
This screw features precise Class 2A thread fit per UNC standards, with a thread size of 7/16"-14 and coarse spacing. It meets ASME B18.2.1 and ASTM A307 specifications for dimensional accuracy and manufacturing quality. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental safety and regulatory adherence in global markets.
