Types of Door Latches
Latches can be made in a variety of materials in various thicknesses, finishes, and finishes to meet specific engineering specifications. Engineers can choose a galvanized lock to prevent 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 might require a padlock.
Hook and Eye Latch
The hook and eye latch can easily be used to secure windows, gates, cabinets, and sheds. van hook locks fitted 's also great for securing porches, screens and storm panels. No fancy tools are required and the hook can be screwed into place by hand in minutes. The screw points are sharp and bite into wood quickly and easily for added security and stability.
To determine the right hook size, first identify the type of hook. Crosby Group (c): Check the clevis or eye for the embossed hook type and size. The size is displayed on both sides. The clevis grabber hook features a clevis to attach directly to chain while the eye rigging has an eye that is large and angled for use with synthetics and wire rope. Pewag(c) Hook type, size in mm and the alloy grade is embossed on the lower portion of the hook bowl. CMCO Columbus McKinnon (c) Take a look at the "HA 800" or "HA 800-1000" and the hook size on the lower part of the bowl, near the clevis.
Laclede(c) markets the Cartec chain hook. It is easy to recognize by its "Cartec" embossed on the bowl's bottom and safety red or orange. Gunnebo(c) and CMCO Columbus McKinnon both have their names embossed on the lower section of the hook bowl. Gunnebo also has a swivel sling hook, which is identified by an "ELD" halfway up the bowl. This hook features a wide eye that is able to distribute web and round slings.
Clevis Latch
A clevis latch permits the user to connect the hook of a clevis to an anchor point, and also prevents the hook from coming loose during the transfer of a load. Clevis latches are available in different styles, like those with spring-loaded handles, or those equipped with safety locks. This latter is perfect for slip hooks because they guarantee that the load doesn't fall off the hook unless an inward force is applied. This makes slip hooks with clevis compatible with ASME B30.9 Slings standards and OSHA regulations.
A typical clevis latch has a clevis pin and tang on one side and a shaped head on the other. These clevises are usually constructed of steel to provide the latch with strength and are usually plated with zinc, silver, or chrome. They're usually plated with silver, zinc, or chromium to resist corrosion. They can be made harder.
These latches are utilized in a variety of applications which range from connecting chains and rigging equipment, to securing cargo in pickup trucks as well as on trailers. They're also employed for heavy-duty applications, such as the securement of machinery and cranes.
Certain clevises have been made using folded pieces, while others are constructed from machined pieces. Their bases are equipped with a hole that's either threaded or not, and they can be secured to other parts using an clevis bolt, or a hanger for clevis.
The clevis pin is typically threaded, and can fit into a hole that's smooth or slotted. The pin is larger in diameter than bolts, and is designed to handle huge shearing stress and be able to withstand an axial load.
Many clevis latches have been hardened to withstand the pressure and vibration of use in harsh environments. Some are rated for overhead lifting. This means that they can support more weight than non-hardened models. In addition to this, a hardened latch can be coated with a variety metals including silver, nickel and chromium to increase its resistance to corrosion. They can be powder coated or painted to add color and enhance their appearance.
Self-Closing Latch
The locking mechanism can be as complex or as simple as the overall design. The majority of these devices are made of metals for strength and durability. The use of painted or powder-coated latches can also improve their appearance. Regardless of the materials employed to make them, latches must be capable of enduring being bent, sheared, and impact forces. The thickness of the latch's backing plates, barrels and cams is a key aspect when determining if they are light, medium or heavy-duty.
The latch you choose should be based on both your security requirements and the type of enclosure or door you plan to attach it to. A garden gate that is lightweight is an example. It can be secured using a hook latch. However, a robust shed requires the combination of a padlock with a hasp.
If you have a self-closing latch or no, the most important thing is to make sure that it is closed properly. This will reduce the chance of accidental disengagement that could cause injuries on the job site. If you're unsure what to look for to determine whether a self-locking ring is ready for loading Look for locks with an internal stop or trigger mechanism that blocks it from opening.
Another important consideration is the handiness. Certain bolt, rotary and slam designs are made specifically for people who are left-handed or rights-handed. Left-handed latches are generally placed in the center of the latch on doors that face towards the interior. The right-handed models are placed on the outside of doors and are utilized for doors that are facing away from the inside.
There are also special latch tools designed to bypass the Adams Rite-style commercial door locking latches that are found on many truck and bus fleets. They enter through a cutout on the side of the commercial door adjacent to the latch. They extend their reach into the latch to pull on an adjustable bar that opens the latch to 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 numerous kinds of latches, and each type has a particular purpose. The most common latches for doors include hook or clevis latches, cam and cam, compression latches, and those that rotate. Some latches also include locking mechanisms, such as a keyed lock or panic bar. Metals are the most popular material for latches but other materials may also be used. They are also subjected to additional processes in order to improve their quality of surface. Finishes for latches can include painting, powder coating, and polishing.
Keyed latches are latch that has a cylinder and requires a specific key to unlock it. Cylinders are made up of tumblers and pins which align with cut marks on keys to unlock the latch. Certain locks have additional features like antipick or antidrill protection.
Another kind of latch is the hasp, consisting of a steel strap and staple. The staple is attached using hinges to the other end of a strap that has a slot in it. Latches can also be constructed from other materials like rubbers and plastics, but metals are more often used due to their formability as well as their machinability and strength.
Door latches are typically crafted from metals, but there are some exceptions. For instance some latches are constructed from plastics in order to reduce the weight of doors or to meet other design requirements. Other latches have special uses, such as latches that are activated by the lever or handle. This allows emergency exits from buildings as well as other settings.
There are two main types of door latches, which are levers and knobs. Levers are more prevalent on modern designs, whereas knobs are found on older models. Some latches are able to be opened on both sides. This is useful for interior doors with no windows. A Pawl latch is a basic form of a cam latch that can be locked with the quarter-turn and unlocked using reverse quarter-turn. It is often used on electronic enclosures and in RVs, trailers, buses and trucks.