Types of Door Latches
Latches are crafted in various materials in various thicknesses, finishes, and finishes to meet specific engineering requirements. Engineers can pick an electro-galvanized lock to avoid corrosion and ensure durability in harsh environments.
Other specifications include the security level required for the application. Hook lock latches for instance, is more secure than hasps, and may require a padlock.
Hook and Eye Latch
The hook and eye latch is a simple way to secure gates, windows cabinets, sheds, and gates. It's also great to secure screens, porches and storm panels. The hook can be screwed in position by hand without the use of any fancy tools. The sharp screw tips pierce into wood quickly and effectively to provide extra security and stability.
To determine the correct hook size, first determine the hook type. Crosby Group (c): Check the eye or clevis for the type of hook embossed and size. The size in inches is on one side, and the size in mm is on the other. The clevis grab hook features the clevis to attach directly to chain, while the eye rigging hook features an eye that is large enough for use with synthetics or wire rope. Pewag(c), the hook type size (in millimeters) and grade of alloy are engraved on the lower part the bowl of the hook. CMCO Columbus McKinnon(c): Look for "HA 800" or HA 800-1000" and the hook's size embossed on the lower side of the bowl near the clevis.
Laclede(c) sells the Cartec chain hook. It is easy to identify as it has "Cartec" embossed at the bottom of the bowl, and safety red or orange. Gunnebo(c) and CMCO Columbus McKinnon both have their names embossed on the lower section of the hook bowl. In addition, Gunnebo has a swivel hook that's identified by an "ELD" mark halfway into the bowl of the hook. The hook has a large eye that can distribute webs and round slings.
Clevis Latch
A clevis lock lets users to secure the clevis to an anchor, and it prevents the hook from falling off during a transfer of the load. Clevis latches come in many different styles, like ones with spring-loaded handles or those with safety locks. This is ideal for use with slip hooks because they ensure that the load won't come off the hook until an inward force is applied. This feature makes clevis-slip hooks compatible with ASME B30.9 Slings Standards and OSHA Regulations.
A typical clevis latch comes with a clevis pin and tang on one side and a shaped head on the other. These clevises, typically constructed from steel to give strength to the latch, are often plated with zinc, silver or chrome. They are often coated with silver, zinc, or chromium to resist corrosion. They can also be made harder.
These latches are suitable for different purposes including connecting chains to rigging equipment to secure loads in pickup trucks and trailers. These latches can also be used in heavy duty applications like securing machinery and cranes.
Certain clevises are molded using folded pieces, while others are made from machined pieces. They are built with a base that has a hole, whether threaded or not. They can be connected to other components with a clevis bolt.
The clevis pin is typically threaded, but it can fit into a hole which is smooth or slotted. The pin is bigger than a bolt, and is designed to withstand massive shearing forces as well as an axial load.
Many clevis latches are hardened to withstand the strain and vibrations of use in harsh environments. Some are even certified for overhead lifting, which means they can support a larger amount of weight than unhardened versions. A latch that is made of hardened material can be plated with various metals, including silver or nickel to enhance its corrosion resistance. They can also be painted or powder coated to enhance color and their appearance.
Self-Closing Lock
The latch's locking mechanisms can be as simple or complex as the overall design. hook lock for sliding door are typically constructed of metal to ensure strength and durability. Powder-coated or painted latches can also enhance their appearance. No matter the material used in their manufacture the latches have to be able to withstand bending, shearing and impact forces. The thickness of the latches' barrels, backing plates, and cams play a major role in determining if they are medium-, light-, or heavy-duty.
The type of latch you select is determined by your security needs and the kind of door or enclosure that it will be connected to. For example, a lightweight garden gate can be secured using hook latches, whereas an imposing shed door requires a hasp and padlock combination.
If you have a self-closing latch, or not, the most important factor is to ensure that it is properly closed. This will reduce the chance of accidental disengagement that could result in workplace injuries. If you're unsure what to look for to determine whether a self-locking ring is ready to load make sure you choose a lock that has an internal stop or trigger mechanism that blocks it from opening.
Another crucial aspect to consider is the hand. Certain bolt, rotary and slam designs have been designed specifically for left-handed or rights-handed. Left-handed latches are usually positioned in the middle of the latch on doors that are facing inwards toward the interior. The right-handed models are positioned on the outside of doors and are utilized to open doors away from the inside.
There are also latch tools designed to work around the Adams Rite-style commercial door locking latches on many truck and bus fleets. These devices enter the assembly through a cutout on the door's side next to the latch. They then pull the swing bar to retract the latch. These tools are available on the internet or in most hardware stores that carry Adams Rite latch products.
Keyed Latch
Latches are used to keep doors and gates closed. There are several types of latches. Each one has a specific function. Some common latches used for doors include hook or clevis latches, cam and cam as well as compression latches and the rotary ones. Some latches include locking mechanisms like keys or panic bars. lock. Metals are the most common material for latches, but other materials can also be employed. They can also undergo secondary processes to improve their surface qualities. Finishes for latches can include painting, powder coating and polishing.
Keyed latches are made of the form of a cylinder, and requires a key to unlock. The pins and tumblers of the cylinders align with the cut on the key to unlock the latch. Some locks have extra features, like anti-pick or antidrill protection.
Another type of latch is the hasp, which consists of a metal strap and staple. The staple is attached with a hinge to the other end of a strap with an opening inside it. Latches can also be made out of other materials, including rubbers and plastics however metals are often used due to their formability, machinability, and strength.
Door latches are typically crafted from metals, however there are exceptions. For instance certain latches are made from plastics in order to reduce the weight of doors or to meet other requirements for design. Other kinds of latches can be utilized for specific applications like latches that are designed to be operated by pushing the lever or handle, which allows emergency exits from buildings and other environments.
There are two main kinds of door latches, which are levers and knobs. Levers are more popular on modern designs, while knobs are more common on older models. Certain latches can be opened on either side. This is a great option for doors that do not have windows. A Pawl latch is a basic type of cam latch which can be locked by a quarter-turn or unlocked with a reverse quarter-turn. It's commonly used in electronic enclosures trailers, buses, RVs, and trucks.