Types of Door Latches
Latches are available in a variety of materials, finishes, and thicknesses depending on the engineering requirements. For instance, engineers may select a galvanized latch to prevent corrosion and maintain the durability even in harsh environments.
Other specifications include the degree of security needed to secure an application. For instance hook lock latches is more secure than a hasp lock and could require the use of padlocks.
Hook and Eye Latch
The hook and eye latch can easily be used to secure gates, windows cabinets, sheds, and gates. It's also ideal for securing storm panels, porches, and screens. The hook can be screwed in position by hand without the use of any fancy tools. The screw points are sharp and bite into wood quickly and easily for added security and stability.
To determine the correct hook size, first determine the type of hook. Crosby Group(c) Find the hook type and size embossed close to the eye or the clevis of the hook. The size is displayed on both sides. The clevis grabber hook comes with an clevis that can be attached directly to chain, while the eye rigging comes with an eye that is large and angled to use with synthetics or wire rope. Pewag(c) Hook type, the size in millimeters and the grade of alloy is embossed on the lower surface of the hook bowl. CMCO Columbus McKinnon (c) Take a look at the "HA 800" or "HA 800-1000" as well as the size of the hook on lower part of the bowl, close to the clevis.
Laclede(c) is the marketer of the Cartec chain hook. 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. Gunnebo also has the swivel hook, which is identified by an "ELD" midway across the bowl. The hook has a large eye that is able to distribute web and round slings.
Clevis Latch
A clevis latch permits the user to attach the hook of a clevis to an anchor point, and it also helps prevent the hook from coming loose during a load transfer. Clevis latches come in many different styles, like those with spring-loaded handles, or those equipped with safety locks. The safety lock is a great option for slip hooks as it ensures that the load won't come off unless a force is applied inward. This feature makes clevis slip hooks compatible with ASME B30.9 Slings Standards and OSHA Regulations.
A typical clevis lock consists of an clevis pin that has the tang at one end and a head that is formed at the other. These clevises, typically made of steel to provide strength for the latch and are usually plated with zinc, silver or chrome. They're usually plated with zinc, silver, or chromium to resist corrosion. They can also be tempered.
These types of latches can be used in various applications such as connecting chains, rigging equipment to secure loads in pickup trucks and trailers. They are also used in heavy duty applications such as securing machinery and cranes.
Certain clevises are constructed of pieces that have been machined or folded pieces that have been molded into them. Their bases have an opening that is threaded or unthreaded and can be attached to other components using the clevis bolt or clevis hanger.
The clevis pin is usually threaded, but it can be fitted into a hole which is smooth or slotted. The pin is bigger than a bolt and designed to withstand massive shearing forces and to withstand an axial load.
Many clevis latches are hardened to withstand the pressure and vibrations of use in harsh environments. Some are designed for overhead lifting. This means that they can support more weight than the non-hardened models. A hardened latch may also be plated in a variety metals such as nickel or silver to increase the resistance to corrosion. Painting or van hook locks near me can be used to enhance their appearance and provide color.
Self-Closing Latch
The locking mechanisms of latches can be as simple or intricate as the overall design. Most often, the latches are constructed from metals to ensure strength and durability. They can also be painted or powder coated to enhance the latch's appearance. Latches, no matter what materials they are constructed from they must be able to withstand being able to withstand shearing, bending, and other impact forces. The thickness of the barrels, backing plates and cams are the primary factors in determining if they're medium-, light-, or heavy duty.
The kind of latch you select should be dependent on your security requirements and the type of enclosure or door it will be connected to. For example, a lightweight garden gate can be secured by hook latches, whereas an imposing shed door requires a padlock and hasp combination.
It doesn't matter if you employ an automatic latch or not. The most important thing is that it is closed properly. This minimizes the risk of accidental disengagement which can result in workplace injuries. If you're not sure if the hook is ready to be loaded, look for a lock with an internal trigger or stop mechanism.
Another factor to consider is the handedness. Certain bolt, rotary and slam designs are designed specifically for people who are left-handed or right-handed. Left-handed latches are typically placed in the center of the latch on doors that are facing towards the interior. The right-handed models are placed on the outside of the door and are utilized on doors that face outward away from the inside of the building.
There are also latch tools designed to work around the Adams Rite-style commercial door locking latches that are found on a lot of bus and truck fleets. They pass through a cutout in the side of the commercial door adjacent to the latch. They then reach up inside the assembly to pull the swing bar, which will retract the latch back into the open position. You can locate these tools on the internet or at many hardware stores that carry Adams Rite latch products.
Keyed Latch
Latches are used to keep doors and gates closed. There are numerous kinds of latches, and each serves a specific purpose. The most common door latches are hook or clevis, cam compression and rotary latches. Some latches are also equipped with locking mechanisms, for example a keyed lock or panic bar. Metals are the most commonly used material for latches but other materials may also be employed. They may also undergo additional processes to enhance their properties on the surface. Typical finishes for latches include plating, polishing, powder coating, and painting.
Keyed latches are latch with a cylinder that requires a specific key to unlock it. The pins and tumblers of the cylinders are aligned with the key's cut to unlock the latch. Some locks are equipped with extra features, such as anti-pick or antidrill protection.
A hasp is a lock that consists of a metal band and a staple. The strap has a slot punched in one end which fits over the staple, and the staple is attached to the other end of the strap with hinges that allow it to move. Other materials such as plastic and rubber can be used to make latches, however, metals are preferred due to their formability, machinability and durability.
Metal is the most common material used in door latches however, there are a few exceptions. Certain latches, like, are made of plastic to help reduce weight or to meet other design specifications. Some latches are designed for specific purposes, such as latches designed to be activated with a lever or handle. This permits emergency exits from buildings and other environments.
There are two kinds of door latches: knobs and levers. Knobs are usually used on older doors, while levers are more popular in modern designs. Some latches are reversible which means they can be opened from either side, which is particularly beneficial for doors that are inside and there are no windows. A Pawl latch is a basic type of cam latch which can be locked by the quarter-turn and unlocked using reverse quarter-turn. It is commonly used in electronic enclosures, trailers, buses, RVs, and trucks.