National Hardware 4.5-Inch Safety Double-Hinge Hasp

Last updated: September 9, 2021

National Hardware 4.5-Inch Safety Double-Hinge Hasp

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We looked at the top Hasps and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Hasp you should buy.

Overall Take

This sturdy ribbed hasp made from cold rolled steel has a double-hinge design that's designed for use on around-the-corner doors, toolboxes, chests and lockers. All screws are hidden when the hasp is closed for extra security.

In our analysis, the National Hardware 4.5-Inch Safety Double-Hinge Hasp placed 5th when we looked at the top 6 products in the category. For the full ranking, see below.

From The Manufacturer

Double hinge is designed for around-the-corner applications on lockers, chests, tool boxes and doors. For security, all screws are concealed when hasp is closed. Ribbed design for extra strength. Includes rigid non-swivel staple. Manufactured from cold rolled steel.


Padlocks are used to lock up storage unit doors, lockers, vehicles and many other objects. While they can be used on their own if you need to secure a chain or something similar, you can’t just stick a padlock on a door or other object. You’ll also need to install a hasp, or a fastening latch made up of a hinged metal plate with slots, to attach the padlock to.

Hasps also include a separate part called a staple. This is the steel loop that the padlock shackle (the top, curved part) goes through. The hinged part has mounting holes. That is where you screw it into the object. When the hasp is closed, its mounting screws should be hidden.

Hasps are made from a variety of different materials. Commercial-grade hasps are usually made from steel. Hasps can also be made from stainless steel, aluminum and other materials.

Heavy-duty hasps are made to prevent others from breaking into protected areas and are sturdy enough to resist sawing, cutting, hammering and other forces.

Straight hasps are designed for flat surfaces but right-angle hasps are good for swinging and sliding doors. Hinged hasps secure hard-to-lock locations like around corners and uneven surfaces. Some of these have up to four parts.

Buying Advice

  • Heat-treated hasps are more resistant to deterioration and breakage.
  • Anti-theft screws are an added security measure.
  • Your hasp should be thick enough to withstand breakage.
  • Hasp fasteners should always be concealed when the hasp is closed.
  • Always keep the keys to your padlocks in a secure location.