5/16-18 x 3-1/2 Coarse Hex Cap - Grade 5 Box/50

Overview

The 5/16-18 x 3-1/2 Coarse Hex Cap Screw – Grade 5, Box/50 (00282) is designed for general-purpose fastening applications requiring a hexagonal-drive, wrench-driven screw in a coarse thread configuration.

Technical Features

• Grade 5 Classification: Meets SAE Grade 5 strength requirements, making these screws suitable for medium-strength structural and mechanical assemblies where higher tensile strength than Grade 2 is required.
• Hexagonal Head Design: The six-sided head is engineered to be driven by a standard open-end, box-end, or socket wrench, enabling controlled tightening and high torque application.
• 5/16-18 Coarse Thread (UNC): The coarse thread pitch provides faster assembly and disassembly compared to fine-thread variants, and offers improved resistance to cross-threading in field conditions.
• 3-1/2 in Length: Provides sufficient grip length for fastening through multiple layers of material or thicker stock components.
• Box of 50 Units: Bulk packaging supports repetitive fastening tasks on job sites, reducing the need for frequent restocking during a single project.

Applications

• Structural steel and metal fabrication assemblies requiring medium-strength fasteners.
• Machinery, equipment mounting, and mechanical component attachment.
• Wood-to-metal and metal-to-metal connections where a wrench-driven hex cap is specified.
• General construction and maintenance tasks calling for a coarse-thread, wrench-driven fastener.