Types of Door Latches
Latches can be made in a variety of materials and thicknesses, finishes and sizes to meet specific engineering requirements. For instance, engineers can select a galvanized latch to prevent corrosion and maintain the durability even in harsh environments.
Other specifications include the degree of security required to secure an application. For example, a hook lock latch is more secure than a hasp and may require the use of a padlock.
Hook and Eye Latch
The hook and eye latches is a simple way to lock gates, windows cabinets, sheds, and gates. It's also great for securing screens, porches and storm panels. The hook can be screwed in place by hand without the need for fancy tools. The screw points are sharp and can be sunk into wood quickly and easily for added stability and security.
To determine the proper hook size, first identify the hook type. Crosby Group(c): Look for the hook's type and size embossed near the eye or the clevis on the hook. The size in inches is on one side and the size in millimeters is on the other. The clevis grab hook comes with an clevis that can be used for direct attachment to chains, whereas the eye rigging hook comes with an eye large enough to use with synthetic rope or wire rope. Pewag(c) is the hook type size (in millimeters) and grade of the alloy are embossed in the lower part of the bowl of the hook. CMCO Columbus McKinnon (c): Look at the "HA 800" or "HA 800-1000" and the hook size on the lower part of the bowl, which is near the clevis.
Laclede(c) markets the Cartec chain hook. It's easy to spot since it has a raised "Cartec" embossed at the bottom of the hook bowl and is available in safety orange or red. Gunnebo (c) and CMCO Columbus McKinnon have their names embossed in the lower portion of hook bowl. Gunnebo also has the swivel hook, that is identified by an "ELD" midway up the bowl. This hook features a wide eye which can distribute round and web slings.
Clevis Latch

A clevis latch allows the user to connect the hook using clevis to an anchor point and it also helps prevent the hook from coming loose during loading transfer. please click the next document are available in a variety of different styles, like those with spring-loaded handles or those with safety locks. This latter is perfect for slip hooks because they guarantee that the load doesn't fall off the hook until an inward force is applied. This makes clevis-slip hooks compatible with ASME B30.9 Slings Standards and OSHA Regulations.
A standard clevis lock has a clevis pin with tang at one end, and a shaped head at the other. These clevises, which are typically constructed from steel to give strength to the latch and are usually plated with zinc, silver or chromium. To resist corrosion, they're typically coated with chrome, zinc, or silver. They can also be hardened.
These latches are used in a myriad of applications which range from connecting chains and rigging equipment, to securing cargo in pickup trucks and on trailers. These latches are also employed in heavy-duty tasks like securing machinery and cranes.
Some clevises are made of machines and others are made of folded pieces that are molded into them. Their bases feature an opening that is threaded or not and they can be attached to other components using the clevis bolt or hanger for clevis.
The clevis pin can be threaded and fit into a smooth or slotted hole. The pin is larger in diameter than a bolt and is designed to withstand massive shearing stresses and be able to withstand an axial load.
Many clevis latches are hardened to withstand the pressure and vibration of use in harsh environments. Some are even certified for overhead lifting, meaning they can support a greater amount of weight than unhardened versions. In addition to this, a latch that is hardened can be coated with a variety metals like nickel, silver, and chromium, to increase its resistance to corrosion. Powder coating or painting can be used to improve their appearance and add color.
Self-Closing Latch
The locking mechanisms of latches can be as simple or complicated as the overall design. These devices are usually constructed from metal to ensure strength and durability. Powder-coated or painted latches can also enhance their appearance. Latches, no matter what materials they are constructed from, must be able resist bending, shearing and impact forces. The thickness of the latch's barrels, backing plates and cams is an important aspect when determining if they are light, medium, or heavy-duty.
The kind of latch you choose must be based on your security needs and the type of enclosure or door it will be connected to. A garden gate that is lightweight, for example, can be secured with hook latches. However, a sturdy shed requires the combination of a padlock and a hasp.
It doesn't matter whether you use an automatic latch or not. The most important thing is to ensure that it is closed properly. This minimizes the risk of a mishap that could cause injuries on the job site. If you are not sure if the hook is ready to be loaded, look for a lock that has an internal trigger or stop mechanism.
Another crucial aspect to consider is the handiness. Certain bolt, rotary, and slam designs have been designed specifically for right-handed or left-handed. Left-handed models are usually placed in the middle of the latch and are used on doors that are facing inward towards the interior of the building. The right-handed designs are positioned on the outside of the door and are utilized on doors that open outwards from the interior of the building.
There are tools that work around the Adams Rite style commercial door locking latches that are found on a variety of trucks and bus. These devices enter through a cutout on the side of the commercial door next to the latch. They then reach up inside the assembly to pull on a swing bar that will retract the latch back into the open position. These tools are available on the internet or in many hardware stores that stock Adams Rite latches.
Keyed Latch
Latches are used to close doors and gates. There are many different types of latches, and each type has a particular purpose. Some common latches used for doors include hook cam, clevis and hook latches, compression latches, and those that rotate. Some latches come with locking mechanisms such as keys or panic bars. lock. Latches can be crafted from various materials, with the metals being the most popular. They may also be subjected to additional procedures to enhance their quality of surface. The finishes for latches could include powder coating, painting, and polishing.
Keyed latches are made of a cylinder and requires an unlocking key. Cylinders are made up of tumblers and pins which align with cuts on a key to unlock the latch. Some locks include extra features such as antidrill or antipick protection.
A hasp is a type of latch made of a metal band and a staple. The strap has a punched slot on one side that is able to fit over the staple and is fixed to the opposite end of the strap with a hinge that allows it to move. Other materials such as plastic and rubber are utilized to create latches but metals tend to be more popular due their formability, machinability and the strength.
Door latches are usually made out of metals, however there are exceptions. Certain latches, like made of plastic, are designed to help reduce weight or meet other design requirements. Other types of latches are designed for specific purposes such as latches that are designed to be operated by pushing the lever or handle, which allows emergency exits in buildings and other environments.
There are two types of door latches: levers and knobs. Knobs are usually found on older doors, while levers are more prevalent in modern designs. Some latches are reversible, meaning they can be opened from either side, which is especially beneficial for doors that are inside and there are no windows. A Pawl latch is a basic form of a cam latch that can be locked with one quarter-turn, or unlocked using reverse quarter-turn. It is typically used in electronic enclosures, trailers, buses, RVs, and trucks.