Its deeper slot capacity makes it ideal for applications requiring extra head strength, or a deeper drive socket.The flat head screwdriver is the most common type we use, it is simple and widely used for most installation or removal purposes. The head height is about half its diameter and typically has a slot drive. A cheese head has cylindrical sides with a flat disc top (similar to a wheel of cheese) and a flat bearing surface. Depending on the application, they may require a countersunk hole.Ĭheese Head. They are usually available in finishes that coordinated with cabinetry hardware finishes, such as white wood or white stainless steel. Screws with an oval flat head are desirable for fastening hinges to cabinets. These are typically paired with a slotted drive. Oval fillister screws are essentially the same as fillister screws, but the shape on the top of the head is rounded. Nylon Fillister head screws are chemical and oil resistant, nonconductive, and lightweight. Brass Fillister head screws are corrosion resistant, nonmagnetic, and electrically conductive. Fillister-head screws are raised above the surface on a flat base to keep the screwdriver from damaging the surface as the screw is tightened. It also helps the screw remain firmly in place.įillister Head. The head can be circular or hexed, and has a washer built onto the head to increase its diameter, prevent overdriving into softwoods, while providing a maximum bearing surface. This head type is a combination of a screw and a washer. It allows a trim finish for decorative applications and minimizes the risk of something catching on the screw head when the item is used. This Phillips-driven head has a flat or slightly domed profile to provide a large mating surface area for a firm hold, even with enlarged holes. This low-profile, rounded-head screw head is about two-thirds the height of a standard rounded head screw. Its purpose is to allow a nearly flat external surface without a countersink, making low-profile designs possible. Wafer head or ultra-thin head screws, used in electronic devices, are also called micro-profile, slim-head, or ultra-low head screws. The socket cap head screw is most commonly used in industrial applications. It is available in a variety of sizes and finishes, and some are designed for outdoor applications. This type of screw has a cylindrical shaped head with a hex recess that can be tightened with a socket wrench driver. However, they can also be supplied with 6-Lobe/Torx drives.The most common metals in button head screws are alloy and stainless steel, but they can also be made of titanium or aluminum. Sometimes called a button socket screw, this rounded head most commonly has a hexagonal drive hole to accommodate an Allen wrench or hex key. The term “countersunk” means the flat head of the screw is flush with (or lower than) the material’s surface.īutton Head. Also called countersunk, a flat head screw is tapered on the underside of the head in order to lie flush with the material it is driven into. The head is shaped like an upside-down frying pan, which gives it it’s name.įlat Head. A Philips drive is the most common driver in a pan head, but they may have a slotted drive, or 6-lobe/Torx drive, Pozi Drive, or others. These may also be referred to as round head screws. Among the many types of screws, the most common is the pan head screw. Check out our EZ Screw Builder to learn more! Screws are available in an array of head shapes, threading, and custom features. Most are made of steel with a corrosion resistant coating, or stainless steel. The purpose of a screw’s design is to allow it to be removed and replaced without damaging the screw or the material it is connecting.
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