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A Hook Lock Latch Success Story You'll Never Be Able To
Types of Door Latches

Latches can be made in various materials as well as finishes and thicknesses in accordance with the engineering requirements. For instance, engineers can choose a latch that is galvanized to prevent corrosion and preserve the durability in harsh environments.

Other specifications include the security level required for the application. Hook lock latches, for example is more secure than hasps, and may require the use of a padlock.

Hook and Eye Latch

The hook and eye latches can be easily installed to secure gates, windows cabinets, sheds, and gates. It's also ideal for securing storm panels, porches, and screens. There are no fancy tools required and hooks can be screwed in by hand within a matter of minutes. The screw points are sharp and bite into wood quickly and easily, providing stability and security.


To determine the correct size of hook, first identify the type of hook. Crosby Group (c): Look near the eye or clevis for the embossed hook type and size. The size is shown on both sides. The clevis grab hook features the clevis to attach directly to chain, while the eye rigging hook has a large eye designed for use with synthetic rope or wire rope. Pewag(c): The hook type, the size in millimeters and the alloy grade is engraved on the lower portion of the bowl. Columbus CMCO McKinnon(c): Look for "HA 800" or HA 800-1000" and the hook size embossed on the lower part of the bowl, near the clevis.

Laclede(c), markets the Cartec chainhook. It's easy to spot as it has a raised "Cartec" embossed on the bottom of the bowl and is available in safety orange or red. Gunnebo(c) and CMCO Columbus McKinnon both have their names embossed on the lower portion of the hook bowl. Additionally, Gunnebo has a swivel hook that's identified by an "ELD" mark mid-way across the bowl. This hook features a wide eye that is able to distribute webs and round slings.

Clevis Latch

A clevis lock lets users to secure a clevis onto an anchor and stops the hook from slipping off during the transfer of load. Clevis latches are available in a variety of different styles, like those with spring-loaded handles, or ones equipped with safety locks. The latter is ideal for slip hooks because they ensure that the load doesn't fall off the hook unless an inward force is applied. This makes clevis-slip hooks compatible with ASME B30.9 Slings Standards and OSHA Regulations.

A standard clevis lock is the clevis pin, which has a an end with a tang, and a head that is formed at the other. The clevises are constructed of steel, which provides strength for the latch. They are often coated with silver, zinc, or chromium, to resist corrosion. They can be hardened.

These types of latches can be used for different purposes such as connecting chains, rigging equipment to securing loads in trailers and pickup trucks. They are also used for heavy duty applications, such as the securement of machinery and cranes.

Some clevises are made of machines or folded pieces molded into them. They have a base with a hole, either threaded or unthreaded. They can be connected to other components using a clevis bolt.

The clevis pin is usually threaded, and can be fitted into a hole that's either smooth or slotted. The pin has a larger diameter than a bolt and is designed to withstand massive shearing stresses and be able to withstand an axial load.

hook deadlocks for vans are hardened to withstand the vibrations and stress of harsh environments. Some are designed for overhead lifting. This means that they can support more weight than the non-hardened models. A latch that is hardened can be plated with a variety of metals such as silver or nickel to improve the resistance to corrosion. They can be powder coated or painted to add color and enhance their appearance.

Self-closing Lock

The latch's locking mechanisms can be as simple or complicated as the overall design. The majority of the latches are constructed from metals for durability and strength. They can also be powder coated or painted to improve the appearance of the latch. No matter the material used to manufacture them latches should be able to withstand the bending, shearing and impacts. The thickness of the latches' barrels, backing plates and cams are key factors in determining if they are medium-, light-, or heavy-duty.

The kind of latch you choose should be based on your security needs and the kind of door or enclosure that it will be attached to. For example, a lightweight garden gate can be secured using hook latches, whereas the door to a shed that is strong requires a hasp and padlock combination.

It doesn't matter if you utilize an automatic latch or not. The most important thing is that it is shut properly. This helps reduce the risk of accidental disengagement that could lead to work-site accidents. If you're not sure if the hook is ready to be loaded, look for a lock that has an internal stop mechanism or trigger.

Another important consideration is handedness. Certain types of bolt, rotary, and slam latches are made to be either left-handed or right-handed. Left-handed latches are typically placed in the center of the latch on doors that face inwards toward the interior. The right-handed designs are positioned on the outside of the door and are used on doors that are facing outwards from the inside of the building.

There are also specialized latches designed to work around the Adams Rite-style commercial door locking latches on many truck and bus fleets. These tools are inserted through a cutout on the side of the commercial door that is adjacent to the latch. They then reach up inside the assembly to pull a swing bar that retracts the latch into the open position. These tools are available online or at many hardware stores that stock Adams Rite latches.

Keyed Latch

Latches are used to close doors and gates. There are several types of latches. Each is designed to serve a specific purpose. Some common door latches include hook or clevis, cam compression, and Rotary latches. Some latches have locking mechanisms such as a panic bar or keyed lock. Metals are the most commonly used material used for latches, however other materials may also be utilized. They may also be subjected to secondary procedures to enhance their surface quality. Finishes for latches can include powder coating, painting, and polishing.

Keyed latches are made of the form of a cylinder, and requires an unlocking key. Cylinders are made up of tumblers and pins which align with cut marks on keys to unlock the latch. Some locks are equipped with extra features, like anti-pick or anti-drill security.

Another type of latch is the hasp which consists of a metal strap and a staple. The staple is attached with a hinge to the other end of the strap with slots in it. Other materials such as rubber and plastic can be utilized to create latches however, metals are more popular due to their formability, machinability and durability.

Door latches are usually made from metals, but there are some exceptions. For instance, some latches are crafted using plastics to lessen the weight of a door or to meet other design requirements. Other types of latches are utilized for specific applications like latches designed to be operated by pushing the lever or handle, enabling emergency exits in structures and other areas.

There are two primary kinds of door latches, which are levers and knobs. Knobs are generally found on older doors, while levers are more common in newer designs. Some latches are reversible, meaning they can be opened from either side, which is suitable for doors in interiors where there are no windows. A"pawl lock" is a straightforward version of a cam-lock which can be unlocked by reversing one quarter-turn. It is commonly utilized on electronic enclosures, as well as in buses, trailers RVs and trucks.

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