National Hardware N221-077 Zinc Eye Bolt 3/16x2-1/2

Product Description

The NATIONAL HARDWARE N221-077 is a zinc-plated steel eye bolt designed for secure fastening and rigging tasks in both home and industrial environments. The 3/16-inch diameter by 2-1/2-inch length body features machine screw threads and ships with a hex nut pre-assembled, making it ready for immediate installation. The closed eye loop provides a reliable anchor point for hooks, cables, ropes, or other fastening hardware. Rated for interior and exterior use, the zinc finish provides corrosion resistance against moisture and light weather exposure. Plumbers, electricians, HVAC technicians, and general contractors commonly use eye bolts like this for hanging conduit, strapping pipe runs, and securing equipment in mechanical spaces.

This eye bolt is suited for a wide range of light-duty to medium-duty applications including suspending pipe, securing straps, routing cable, and anchoring guide wires. The machine screw thread pattern allows it to be driven into pre-tapped holes or used with the included hex nut through drilled material such as wood framing, light steel, or structural panels. It is appropriate for residential and light commercial mechanical installations where a reliable, corrosion-resistant anchor point is needed in accessible or exposed locations.

Key Features

• Zinc-plated steel construction for corrosion resistance in interior and exterior applications
• 3/16-inch diameter x 2-1/2-inch length machine screw body
• Hex nut included and pre-assembled for immediate use
• Closed eye loop provides a fixed anchor point for hooks, cable, or rope
• Suitable for home and industrial fastening and rigging applications
• 2160BC catalog series

Compatibility

Designed as a general-purpose zinc eye bolt compatible with standard 3/16-inch machine screw thread applications in wood, metal, or pre-tapped structural members for interior and exterior use.

Installation Notes

Install into a pre-drilled or pre-tapped hole appropriate for a 3/16-inch machine screw thread. Secure the hex nut firmly against the mounting surface to prevent loosening under load. Verify that the base material and mounting surface are rated for the intended load before installation. Do not exceed the load capacity of the base material or the fastener.