When it comes to fastening materials together, screw points are an essential consideration. Different screw point types are designed for different materials and applications, ensuring that the screw penetrates and holds the material securely. In this guide, we’ll cover some of the most common screw point types and their applications.
- Tapping Screw Point Types
Tapping screws are designed for use in materials such as plastic, wood, and sheet metal. They typically have a sharp point and a thin shank, making them easy to install without the need for a pilot hole. Some common tapping screw point types include:
- Type A Point: This point design has a sharp point and coarse threads. It is designed for use in thin sheet metal and plastic.
- Type AB Point: This point design is a combination of the Type A and Type B points. It is designed for use in thin sheet metal and wood.
- Type B Point: This point design has a more blunt point and finer threads. It is designed for use in thicker sheet metal and wood.
- Thread Cutting Screw Point Types
Thread cutting screws are used to cut threads into materials as they are installed. They typically have a sharp point and a tapered shank, allowing them to create their own threads in materials such as metal, plastic, and wood. Some common thread cutting screw point types include:
- Type 1 Point: This point is designed for use in metals, plastics, and other hard materials.
- Type 17 Point: This point is designed for use in softwoods and some hardwoods.
- Type 23 Point: This point design is similar to the Type 1 point, but with a sharper point angle. It is designed for use in harder materials.
- Type 25 Point: This point design is similar to the Type 23 point, but with a finer thread. It is designed for use in harder materials.
- Type F Point: This point design is designed for use in softer materials such as wood and plastic.
- Thread Forming Screw Point Types
Thread forming screws are designed to form threads in materials without cutting them. They typically have a blunt point and a wide, shallow thread. Some common thread forming screw point types include:
- Type C Point: This point is designed for use in metals, plastics, and other hard materials.
- Tri-Lobe Point: This point is designed for use in plastics and other soft materials.
- Lo-Drive Point: This point is designed for use in softwoods and some hardwoods.
- Self-Drilling Screw Point Types
Self-drilling screws are designed to drill their own pilot hole as they are installed. They typically have a sharp point and a flute design that allows them to drill through the material as they are screwed in. Some common self-drilling screw point types include:
- Type G Point: This point is designed for use in thinner materials, such as sheet metal.
- Type H Point: This point is designed for use in thicker materials, such as structural steel.
- Type F Point: This point is designed for use in wood and other softer materials.
- Particle Board Screw Point Types
Particle board screws are designed for use in particle board and other engineered wood products. They typically have a flat or oval head and a coarse thread that allows them to grip the material securely. Some common particle board screw point types include:
- Type F Point: This point is designed for use in softwoods and some hardwoods.
- Type 17 Point: This point is designed for use in softwoods and some hardwoods.
- Deck Screw Point Types
Deck screws are used in building decks and outdoor structures. They typically have a bugle or flat head and a sharp point that allows them to penetrate the wood easily. Some common deck screw point types include:
- Type 17 Point: This point is designed for use in softwoods and some hardwoods.
- Type 25 Point: This point is designed for use in harder woods.
- Concrete Screw Point Types
Concrete screws are used to fasten materials to concrete or masonry. They typically have a flat head and a sharp point that allows them to penetrate the hard material. Some common concrete screw point types include:
- Type A Point: This point design is designed for use in softer materials such as brick and block.
- Type B Point: This point design is designed for use in harder materials such as concrete and masonry.
- Machine Screw Point Types:
Machine screws are used in a wide range of applications, from electronics to automotive. They typically have a blunt, flat-tipped point that is designed to fit into a pre-drilled hole. Some common machine screw point types include:
- Type A Point: This point is similar to the Type A point used in tapping screws. It is designed for use in thinner materials.
- Type AB Point: This point design is similar to the Type AB point used in tapping screws. It is designed for use in thicker materials.
- Type B Point: This point design is similar to the Type B point used in tapping screws. It is designed for use in softer materials such as wood.
- Type 23 Point: This point design is similar to the Type 23 point used in thread-cutting screws. It is designed for use in harder materials such as metal.
When selecting the appropriate screw point type for your application, it’s important to consider the material you’re working with and the specific requirements of your project. With the right screw point type, you can ensure a secure and long-lasting fastening solution.
