Description
The NATIONAL MFG/SPECTRUM BRANDS HHI N220-871 is a zinc-plated screw hook designed for medium-weight to heavyweight hanging applications. It measures 5/16 inches in diameter by 4-1/2 inches in length and features lag screw threads for secure installation into wood substrates. The hook has a safe working load (SWL) of 125 pounds, making it appropriate for suspending planters, signs, clotheslines, and similar fixtures. This item is sold in a bulk pack of 10. Installation is typically performed by general contractors, maintenance technicians, or experienced DIYers working on residential or light commercial projects.
This screw hook is suited for indoor and outdoor hanging applications where a secure, threaded anchor point is needed. Common uses include suspending hanging planters from porch beams, mounting signs to wooden posts, and anchoring clotheslines to structural members. The zinc finish provides corrosion resistance for moderate outdoor exposure. This hook is not rated for overhead lifting, support of human weight, or use in athletic or playground equipment. When safety is a concern in the application, consult the manufacturer before installation and inspect the hook frequently once in service.
Key Features
- 5/16 inch diameter by 4-1/2 inch length with lag screw thread profile for wood installation
- Zinc plating provides corrosion resistance for indoor and moderate outdoor use
- Safe working load of 125 pounds for medium to heavyweight hanging tasks
- Suitable for planters, signs, clotheslines, and comparable suspended loads
- Pack of 10 bulk units for multi-point installations or restocking
- Not approved for overhead lifting, human weight support, or playground equipment
Compatibility
Designed as a general-purpose lag-thread screw hook for installation into wood framing, beams, joists, and posts in residential and light commercial settings.
Installation Notes
Install into solid wood or structural lumber using a drill or screwdriver; pre-drilling a pilot hole is recommended to prevent splitting, particularly in hardwoods or near board edges. Verify the substrate is structurally sound and capable of supporting the intended load before installation. Do not exceed the 125-pound safe working load. Inspect the hook and mounting point regularly for signs of corrosion, loosening, or deformation, and replace if any damage is observed.
Technical Specifications
- Diameter: 5/16 inches
- Length: 4-1/2 inches
- Material/Finish: Zinc
- Safe Working Load: 125 pounds
- Package Quantity: 10 pieces
- Unit of Measure: EA
- Weight: 1.28 pounds
Standard Information
- Brand: NATIONAL MFG/SPECTRUM BRANDS HHI
- Manufacturer Part Number: N220-871
