1/2-13 x 3 Coarse Hex Cap Bolt, Grade 5, Box/25

Overview

The 1/2-13 x 3 Coarse Hex Cap Bolt, Grade 5, Box/25 (51925) is designed for heavy-duty fastening applications requiring a wrench-driven hexagonal head fastener in standard coarse thread configurations.

Technical Features

• Grade 5 classification: Meets the mechanical strength requirements of SAE Grade 5, making these bolts suitable for medium-to-high-strength structural and mechanical fastening tasks.
• 1/2-13 coarse thread: The coarse thread pitch (13 threads per inch) allows for faster installation and improved resistance to cross-threading in field and shop environments.
• 3-inch length: Provides adequate grip length for applications requiring fastening through thicker material sections or when used with washers and nuts.
• Hexagonal head design: Engineered to be driven by a standard wrench or socket, enabling high torque application and secure, consistent clamping force.
• Box quantity of 25: Sold in a standardized box of 25 units, supporting project-scale purchasing and reducing per-unit cost for contractors and tradespeople.

Applications

• General structural assembly where medium-to-high tensile strength fasteners are specified.
• Mechanical equipment assembly requiring wrench-driven hex head bolts in coarse thread configurations.
• Construction and fabrication projects utilizing 1/2-inch fastener patterns.
• Maintenance and repair operations where Grade 5 bolt strength is required per engineering specifications.