National Mfg N273-433 Heavy Open S Hook 2.5in Zinc 50pk

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N273-433 is a heavy-duty open S hook made from zinc plated steel. S hooks in this configuration are used to suspend, hang, or link loads in a wide range of trade and industrial applications. The open design allows for fast attachment and removal without tools. At 2.5 inches in length, this hook suits medium-load hanging tasks. Sold in a bulk box of 50 units, the N273-433 is a practical stocking item for contractors, maintenance crews, and facilities technicians who need reliable hardware in volume.

Open S hooks of this size and material are commonly used in HVAC duct suspension, plumbing support work, pool equipment rigging, and general mechanical installations. The zinc plated finish provides baseline corrosion resistance suitable for dry or mildly humid indoor environments. The heavy-duty rating makes these appropriate for applications where a standard-weight hook would be undersized. Installers typically keep bulk packs on hand for use across multiple job sites or recurring maintenance work.

Key Features

• Heavy-duty open S hook design allows tool-free attachment and removal
• Zinc plated steel construction provides corrosion resistance for indoor use
• 2.5 inch length suits medium-load suspension and linking tasks
• Bulk pack of 50 units reduces per-unit cost for high-volume use
• Open profile compatible with chain, wire, rod, and similar hardware

Compatibility

Designed as a general-purpose open S hook suitable for use with standard chain, wire rope, threaded rod, and similar suspension hardware in residential and light commercial mechanical installations.

Installation Notes

S hooks are typically installed by hand or with basic pliers to close or adjust the opening as needed. Verify that the load rating of the hook is appropriate for the intended application before installation. When used in HVAC or plumbing suspension, follow local mechanical codes for approved hanger hardware and spacing requirements. Inspect hooks periodically for deformation or corrosion, particularly in humid environments.