The most common types of machine screw head shapes are pan head flat head round head oval head truss head and hex head.
Types of machine screws heads.
Know what kind you need for your project before going to the hardware store or home center.
Machine screws are also made with socket heads see above in which case they may be referred to as socket head machine screws.
A screw is a shaft which has a groove on its surface.
A sheet metal screw is similar to a wood screw but has a pan head.
At a minimum it is a set of shaped cavities and protrusions on the screw head that allows torque to be applied to it.
Although this type of screw is one of the most common and inexpensive types it s also the most prone to stripping.
Set screws machine screws with no head for screwing all the way into threaded holes.
Machine screws come in coarse thread which means they have 24 threads per inch and in fine thread which means they have 32 threads per inch.
A robertson screw has a square shaped indention and requires a matching driver head.
Mating screws mating screws have a shoulder that matches the diameter of the sex bolts they are used with.
Although many people refer to any screw head that has cross shaped grooves as a phillips head there are other types of screws that have similar slots.
A brief introduction to the different types of screw heads.
While there are a lot of choices available there are only a few different types of screws a woodworker will ever need.
The screws have cylindrical heads and long vertical sides.
These are strongest and robust of all types of screws heads and are recognized for their durability and quality therefore made of high grade carbon and stainless steel.
And there s a basic look at the various types of screws.
Usually it also involves a mating tool such as a screwdriver that is used to turn it the following heads are categorized based on frequency with some of the less common drives being classified as tamper resistant.
A screw drive is a system used to turn a screw.
A machine screw is generally a smaller fastener less than 1 4 inch 6 35 mm in diameter threaded the entire length of its shank that usually has a recessed drive type slotted phillips etc.
There are two types of hex screws.
These are generally found on the screws with a hex drive on the top of their head.
It is designed to hold objects in a certain alignment.
Hanger bolts hanger bolts have wood thread on one end and machine thread on the other end.
Slotted head screws are what most people refer to as flathead screws because they have one narrow opening for a flat screwdriver.
There are different types of screw heads which have different applications such as robertson slotted and polydrive.
Machine screws come with different types of heads.
