S-95373A174 3/8"-16 x 3" 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 corrosion resistance with hot-dipped galvanized steel coating, ideal for outdoor and harsh industrial environments
- High tensile strength of 60,000 psi ensures reliable performance in heavy-duty construction and machinery applications
- Class 2A thread fit provides consistent, reliable engagement while allowing for easier assembly and disassembly
- Partially threaded design offers superior clamping force control and vibration resistance in structural connections
- External hex drive with 9/16" head width delivers maximum torque transmission and installation efficiency
- Coarse UNC threading enables faster installation and reduced cross-threading risks in industrial settings
- Rockwell B69 hardness rating maintains thread integrity and durability under repeated stress cycles
Professional Applications & Engineering Value
These 3/8"-16 UNC hex head screws deliver critical engineering solutions where corrosion resistance and structural integrity are paramount. The hot-dipped galvanized finish creates a protective barrier that significantly outperforms standard coatings in outdoor construction, marine applications, and industrial equipment exposed to moisture and chemicals. The partially threaded configuration concentrates clamping force precisely where needed, preventing joint loosening in vibrating machinery while the coarse thread pitch ensures rapid installation in structural steel, heavy timber framing, and equipment assembly. Manufactured from ASTM A307 steel with 60,000 psi tensile strength, these screws provide the necessary load-bearing capacity for critical connections in infrastructure projects, manufacturing facilities, and transportation equipment where failure is not an option.
Specification Summary & Compliance
These hex head screws feature precise Class 2A thread fit per UNC standards with 3/8"-16 coarse threading and 1" minimum thread length. Manufacturing complies with ASME B18.2.1 specifications using ASTM A307 steel material. The screws meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring they contain no restricted substances for global industrial applications.
