National Mfg N221-333 Eye Bolt 0.5x10 in Zinc 300 Lb 10-pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N221-333 is a zinc-plated eye bolt measuring 0.5 inches in diameter and 10 inches in length, rated for a 300-pound load capacity. Sold in a bulk pack of 10, this fastener is used in rigging, anchoring, and tie-down applications across construction, electrical, plumbing, and general mechanical trades. The eye bolt provides a threaded shank for secure installation into wood or structural members, with a closed loop at the top for attaching hooks, cables, rope, or chain. The zinc coating provides basic corrosion resistance for indoor and sheltered outdoor use.

This eye bolt is suited for light-to-medium load suspension and anchoring tasks in residential and commercial settings. Common applications include hanging pipe supports, securing cable runs, anchoring straps, and general rigging where a fixed loop point is needed. The bulk pack of 10 units makes this product practical for contractors and service techs who need multiple anchor points on a single job or want to keep stock on hand for recurring installs.

Key Features

• 0.5-inch shank diameter x 10-inch length for deep engagement into structural members
• 300-pound rated load capacity per fastener
• Zinc finish for corrosion resistance in sheltered environments
• Closed-loop eye design compatible with hooks, shackles, rope, cable, and chain
• Bulk pack of 10 units per order — practical for multi-point installations

Compatibility

Designed as a standard threaded eye bolt for use in wood framing, structural lumber, and similar substrates where a 0.5-inch pilot hole or lag thread engagement is appropriate for light rigging and anchoring applications.

Installation Notes

Installation is typically performed by general contractors, electricians, plumbers, or HVAC technicians when establishing hanging or anchor points. Drill an appropriate pilot hole before driving the threaded shank to prevent splitting the substrate. Do not exceed the rated 300-pound load capacity, and always verify that the substrate material and fastener depth provide adequate pull-out strength for the intended load. Follow all applicable local building codes and OSHA guidelines when using eye bolts in overhead rigging or suspension applications.