Flat Head Machine Screws
Flat Head Machine Screws for Flush Finishes
Flat head machine screws offer a countersunk design that helps the screw sit flush within the mating surface. These screws are ideal for applications that require minimal interference, whether that be in machinery applications, furniture, tools, or other similar settings. Since the screw sits flush after installation, it can be easily covered for protective and aesthetic purposes.
Machine screws are characterized by their diameter – which does not exceed 3/4 in. as per ASME standards – and their flat ends with uniform threads. This makes them versatile for use in many applications like machinery, electrical components, and instruments. They come in various head styles to meet specific grip requirements, installation techniques, decorative needs, or surface profiles. These screws are typically used with tapped holes or nuts, though nuts are optional, and are inserted into pre-drilled holes using a drill or screwdriver. Huyett offers an array of head types including:
- Binder Head: Thick cylindrical flat head with slightly rounded top
- Button Head: Rounded head with low profile
- Fillister Head: Tall cylindrical flat head with slightly rounded top
- Hex Head: Six-sided flat head
- Oval Head: Countersunk with straight angles and a curved top
- Pan Head: Short sides with slightly rounded top
- Round Head: Rounded head with no vertical sides
- Truss Head: Short rounded head with a wide base
Product Benefits
Flat head machine screws offer the following benefits:
- Flush Finishes: The countersunk head design allows the screw to sit flush on the mating surface and provide a decorative, low-interference attachment.
- Damage Protection: The flush head protects not only the screw head from damage, but also the mating surface from snagging and catching on nearby components.
Purchase Considerations
Evaluate the following product characteristics before making your purchase:
- Drive Type: Drive types are an essential element to consider before purchasing a screw. Different styles will provide different levels of tightening strength while also dictating what kind of tool is needed for installation.
- Thread Size: The screw thread size should be compatible with the size of the mating hole.
- Material/Finish: The material and finish combination will provide varying levels of corrosion resistance and strength, so it is important to know how the screw will need to perform in your application.
