S-91236A648 3/8"-16 x 6" 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 rated at 60,000 psi for reliable performance in demanding industrial applications
- Superior corrosion resistance with zinc plating to extend service life in harsh environments
- Optimized torque transmission through external hex drive design for secure installation and removal
- Precision thread engagement with Class 2A UNC coarse threads ensuring consistent fastening performance
- Partial threading design providing both gripping strength and clearance where needed
- Robust material construction featuring steel with Rockwell B69 hardness for durability
- Comprehensive compliance meeting ASME B18.2.1 standards and environmental regulations
Professional Applications & Engineering Value
This 3/8"-16 UNC hex head screw delivers critical engineering solutions for industrial fastening challenges. The zinc plated steel construction provides essential corrosion protection in manufacturing environments, while the coarse thread design ensures rapid installation and superior holding power in various materials. The external hex drive allows for high-torque applications common in assembly lines and heavy equipment. With partial threading, this fastener offers optimal clamp load distribution, making it ideal for structural connections, machinery assembly, and construction projects where vibration resistance and long-term reliability are paramount. The combination of 60,000 psi tensile strength and standardized dimensions ensures consistent performance across multiple applications.
Specification Summary & Compliance
This hex head screw features precise Class 2A thread fit with UNC coarse threading (3/8"-16) and partial threading with minimum 1" thread length. Manufactured to ASME B18.2.1 specifications with ASTM A307 material standards. The product maintains dimensional accuracy with 1/4" head height and 9/16" head width. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe usage across industrial sectors.
