National Mfg N221-713 Ss Hook Bolt 5/16x5 Inch 115LB

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N221-713 is a stainless steel hook bolt designed for marine and outdoor applications where corrosion resistance is critical. Measuring 5/16 inch in diameter and 5 inches in length, this fastener is constructed from non-magnetic, passivated stainless steel that resists atmospheric corrosion over the long term. Each bolt ships with two stainless steel hex nuts included. The safe working load is rated at 115 pounds, making it suitable for moderate load-bearing tasks in exposed environments. Tradespeople and contractors working on docks, marine structures, outdoor enclosures, or similar corrosive-environment installations will find this fastener suited to those demands.

This hook bolt is intended for marine settings and other outdoor applications subject to moisture, salt air, and atmospheric exposure. The passivated stainless steel construction makes it appropriate for coastal installations, waterfront structures, pool equipment mounting, and exterior mechanical or electrical enclosure work where standard carbon steel fasteners would corrode prematurely. The package contains 10 pieces, making it practical for small-batch jobs or service van stocking. It ships in bulk format without individual retail packaging.

Key Features

• Stainless steel construction passivated for enhanced corrosion resistance
• Non-magnetic material suitable for sensitive or marine-grade installations
• Safe working load of 115 pounds
• Includes two stainless steel hex nuts per bolt
• 5/16 inch diameter by 5 inch length for standard hook-bolt applications
• Packaged 10 pieces per unit, bulk format

Compatibility

Designed for marine and outdoor applications requiring a 5/16 inch hook bolt with atmospheric corrosion resistance. Suitable for use wherever a stainless steel hook-style fastener of this diameter and length is specified.

Installation Notes

Installation is typically performed by contractors, marine technicians, or maintenance tradespeople using standard hand tools. Confirm the mounting surface and load path are appropriate for the 115-pound safe working load before installation. Do not exceed the rated working load. In corrosive or submerged environments, verify that all mating hardware is also stainless steel or compatible non-ferrous material to prevent galvanic corrosion.