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

Overview

The Midwest Fastener Corp 1/2-13 x 3-1/2 Coarse Hex Cap Screw, Grade 5 — Box of 25 (00344) is designed for heavy-duty fastening applications requiring wrench-driven hex cap hardware in standard coarse thread configurations.

Technical Features

• Grade 5 strength rating — meets SAE J429 Grade 5 medium-carbon steel standards, providing a minimum tensile strength of 120,000 PSI for structural and mechanical fastening demands.
• 1/2-13 coarse thread (UNC) — the coarse thread pitch engages quickly and offers greater resistance to cross-threading in field or production environments.
• 3-1/2 inch body length — accommodates fastening through thicker assemblies, stacked materials, or components requiring deeper thread engagement.
• Hexagonal head design — engineered to be driven by a standard wrench or socket, enabling high torque application without tool slippage.
• Box quantity of 25 — bulk packaging supports job-site and production use, reducing per-unit handling and restocking frequency.

Applications

• Structural steel connections and framing assemblies where Grade 5 tensile strength is specified.
• General mechanical and industrial assembly requiring 1/2-13 coarse thread fasteners.
• Construction and fabrication applications involving stacked or thick-section materials suited to a 3-1/2 inch fastener length.
• Any application requiring a wrench-driven hex cap fastener in compliance with standard UNC coarse thread specifications.