Binder Head Machine Screws

Binder head machine screws feature a thick, slightly rounded head with a cylindrical shape. While they are similar to the fillister head style, they are not as tall and are therefore suited to different applications. The flat under head lends itself to being useful in electrical applications because it can house small wiring beneath the base.

Machine screws are fasteners known for their specific diameter limit of 3/4 in. (as set by ASME). They feature flat ends and uniform threads. This design makes them well suited for use in machinery, electrical components, and instruments. They come in various head styles to cater to different installation methods, surface profiles, grip needs, and aesthetic preferences. These screws can be inserted into pre-drilled holes with or without nuts, using a drill or screwdriver. Huyett provides the following additional types:

Button Head: Rounded head with low profile
Fillister Head: Tall cylindrical flat head with slightly rounded top
Flat Head: Countersunk with straight standard angles and a flat head
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

Binder head machine screws offer the following benefits:

Under Head Space: The flat under head space allows for uses like tucking wiring underneath it.
Versatility: The small nature and wide range of materials/finishes of these component make them compatible with a wide range of applications.
Uniform Threading: The precision threads allow for consistency throughout an application; they also help reduce damage during installation and removal.

Purchase Considerations

Evaluate the following product characteristics before making your purchase:

Drive Type: Each head type can feature multiple drive types, which will impact the tools needed for installation/removal and the strength of the attachment.
Thread Size: Evaluate the screw’s thread size to ensure it is compatible with the mating hole.
Material/Finish: Different materials and finishes will provide varying levels of strength and corrosion resistance. Consider the load and environmental elements of the application before choosing these characteristics.