5/8-11 x 1-1/4 Hex Cap Gr5 Zn

Overview

The 5/8-11 x 1-1/4 Hex Cap Screw (53385) is designed for general fastening applications requiring a wrench-driven hexagonal head fastener in Grade 5 zinc-plated construction.

Technical Features

• Grade 5 strength rating — provides a medium-high tensile strength classification suitable for structural and mechanical fastening applications where upgraded holding power over Grade 2 is required.
• Zinc plating finish — delivers a corrosion-resistant barrier that protects the fastener from oxidation, extending service life in standard indoor and sheltered outdoor environments.
• 5/8-11 coarse thread — the 11 threads-per-inch coarse pitch allows for faster engagement and greater resistance to cross-threading, making installation efficient in typical steel and wood applications.
• Hexagonal head design — engineered to be driven by a standard open-end, box-end, or socket wrench, enabling high torque application and secure, repeatable tightening.
• 1-1/4 in. length — a compact body length suited for applications with limited material stack depth while maintaining full thread engagement.
• 15-piece pack quantity — sold in a multi-unit pack, providing sufficient quantity for single projects or small-volume maintenance tasks without excess inventory.

Applications

• General structural assembly where Grade 5 tensile requirements must be met.
• Mechanical equipment assembly and repair requiring wrench-driven fasteners.
• Framing, bracketing, and hardware mounting in construction or fabrication environments.
• Maintenance and repair operations (MRO) requiring a coarse-thread, large-diameter cap screw.