National Marker N347-690 Zinc Eye Bolt Hex Nut 5/8x12

Product Description

The NATIONAL MARKER N347-690 is a zinc-plated steel eye bolt with hex nut, sized at 5/8 inch diameter by 12 inches in length. It features standard machine screw threads and is intended for use in anchoring, lifting, and rigging applications across both industrial and residential settings. The zinc finish provides corrosion resistance for interior and exterior use. At 1.249 pounds, this eye bolt is built from steel wire construction and ships as a single unit. Installers and maintenance professionals reach for this fastener when a threaded anchor point with a looped head is needed for securing cables, hooks, ropes, or hardware to structural surfaces.

This eye bolt is suited for a wide range of general-purpose fastening tasks in industrial facilities, workshops, warehouses, and residential structures. It is appropriate for both overhead and lateral anchoring where a looped attachment point is required. The included hex nut locks the bolt in place against the mounting surface. Note that extra-large sizes in this product family use coarse thread — this 5/8 inch by 12 inch size follows that coarse-thread specification.

Key Features

• 5/8 inch diameter by 12 inch length — suits heavy-duty anchoring applications
• Zinc plating provides corrosion resistance for interior and exterior environments
• Steel wire construction for strength and durability
• Coarse machine screw threads on this extra-large size
• Includes hex nut for secure surface mounting
• Sold individually — one eye bolt and one hex nut per unit

Compatibility

Designed as a general-purpose zinc eye bolt suitable for standard through-bolt installations in wood, steel, and similar structural substrates where a 5/8 inch threaded fastener is specified.

Installation Notes

Installation is typically performed by maintenance technicians, riggers, or general contractors using standard hand tools including an open-end or box wrench sized for the hex nut. Ensure the mounting substrate is rated for the intended load before installation. Always de-energize or isolate any adjacent systems before drilling or fastening into walls, ceilings, or structural members. Do not exceed the load rating of the substrate or any attached hardware.

Technical Specifications

• Diameter: 5/8 inches
• Length: 12 inches
• Weight: 1.249 pounds
• Material: Steel wire with zinc plating
• Thread Type: Coarse machine screw thread
• Included Hardware: Hex nut
• Application: Interior and exterior
• Unit of Measure: Each

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N347-690