The 3/8 in. x 4 in. Grade 5 Hex Bolt (Model 7200159) is a high‑strength fastening solution designed for applications requiring added length, dependable clamping force, and enhanced durability. Manufactured to Grade 5 specifications, this hex bolt delivers increased tensile and shear strength over standard low‑carbon bolts, making it ideal for moderate‑ to high‑stress assemblies in construction, industrial maintenance, automotive, and equipment applications.
This fastener features a standard six‑sided hex head that allows for secure installation and precise torque application using common wrenches or sockets. The 4‑inch length provides extended reach for thicker material stacks, spaced components, or assemblies requiring deeper thread engagement to ensure long‑term joint integrity and resistance to loosening.
Packaged in a 50‑count box, this product offers a practical balance between jobsite availability and inventory control, making it well suited for contractors, maintenance departments, fabrication shops, and industrial users.
Key Features
Grade 5 strength rating for increased tensile and shear performance
3/8‑inch diameter suitable for medium‑duty structural and mechanical fastening
4‑inch length ideal for thicker assemblies and extended reach applications
Hex head design supports accurate torque application with standard tools
Precision‑formed threads for smooth installation and secure engagement
Heat‑treated steel construction for durability and consistent performance
50‑count packaging supports efficient jobsite use and inventory management
Specifications
Model Number: 7200159
Fastener Type: Hex Bolt
Grade: 5
Diameter: 3/8 inch
Length: 4 inches
Thread Type: Unified National Coarse (UNC) standard
Head Style: Hex
Material: Heat‑treated steel
Finish: Standard Grade 5 industrial finish
Quantity per Package: 50 bolts
Measurement Standard: SAE
Applications
The 3/8 in. x 4 in. Grade 5 hex bolt is commonly used in applications that require added reach and dependable strength, including:
Industrial machinery and equipment assembly
Automotive and transportation components
Agricultural and construction equipment
Manufacturing and fabrication projects
Structural wood‑to‑metal and metal‑to‑metal connections
Facility maintenance and industrial repairs
Replacement fasteners for existing mechanical assemblies
Its extended length makes this bolt especially effective for multi‑layer assemblies, spaced mounting applications, and situations where deeper thread engagement is required for stability.
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