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The NATIONAL MARKER N221317 is a zinc-plated eye bolt with hex nut, assembled and ready for installation. Part of the 2160BC catalog series, it features machine screw threads and measures 0.5 inches in diameter by 6 inches in length. The zinc plating provides corrosion resistance suitable for both interior and exterior environments. Manufactured from steel wire, this fastener delivers reliable load-bearing performance in a range of anchoring and rigging applications. It ships as a single assembled unit with the hex nut included, making it ready for immediate use without additional hardware sourcing.
This eye bolt is designed for home and industrial applications where a threaded anchor point is needed. It is appropriate for use in wood, structural framing, or similar substrates where a through-bolt or lag-style eye anchor is required. The exterior-rated zinc finish makes it suitable for covered outdoor installations as well as standard indoor utility, workshop, and light rigging setups. Contractors, maintenance technicians, and tradespeople regularly use this hardware for hanging, securing, or routing cables, ropes, and chain assemblies.
Designed as a general-purpose threaded eye bolt for residential and light industrial fastening applications requiring a 0.5 inch machine screw thread pattern.
Installation is performed with a standard wrench to tighten the hex nut against the mounting surface. Ensure the substrate material is rated for the intended load before installation. Always verify that the eye is fully closed and the nut is snug before applying any hanging or rigging load. Follow all applicable local building and safety codes when using eye bolts in structural or overhead load applications.
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