whats the difference between a 'set screw' and a 'bolt'?

Answer 1

Set screws do not have a head and are used to secure two or more components with no surficial protrusion. They act in shear, in that the screw is working to prevent the items from slipping longitudinally apart.

A bold has a protruding head and nut hich provide clamping force if tensioned and act in tension (clamping) and shear (preventing slipping of the fastened items).

Hope that helps.

Answer 2

UK motor trade parlance a bolt is the male part of a nut and bolt, while a set screw is a bolt with threads all the way up to the head.
Set screws can have any of the head styles used on bolts and most small short bolts technically are set screws.
Some bolts, Cylinder bolts etc can be several inches long with only a short thread on the end.

Answer 3

Set Screws and Bolts look similar, but a Set Screw has a thread (the spiral bit) along its full length. A bolt has a plain portion between the head and the threaded part of the shank. Set screws tend to be used where they are fitted into blind tapped holes in structures, and bolts where they project through and are secured wth a nut and washer

Answer 4

A set screw is a screw that is through a pulley or gear to hold it to a shaft. A set screw can be a bolt, but for balancing reasons it is usually inset with an allen head screw. A bolt is a treaded fastener that accepts a nut to hold an object in place, or it can be like a head bolt and go through the head and bolt to the threads in the block.

Answer 5

In what way?
How to explain the differences and when and where to use them will take a long time.
Set screws come in all shapes and sizes and have common use when fixing jigs or machinery where their heads vary with some countersunk below the faces.

Screws are used to fix together any two mating parts that are sometimes dowelled as well. They have varying threads and diameters to suit the load expected of them and the pitch varies according to the torque and vibration expected.
They come in all sorts of tensile strengths for the same size and used where required with locking devices.

Bolts are, as they say in the trade, the hammer and bonk end of the family. The rough end where podgers line up holes and hammers drive in the podger prior to submitting the bolt.
The tough guys of the world's fasteners.
Their heads can be hexagonal, square, round or domed.
The can be full or half threaded with the latter having another type of head called a Coach head.
Their nuts can be square or hexagonal with washers that vary where some have teeth to grip the surface of the joining parts.
Needless to say the material used in all cases can vary too.

All bolts should be calculated for single or double shear conditions and their threads designed to deal with vibration and shear as well as the torque required to withstand the conditions prevailing. They should also be sympathetic where water is concerned because of electrolysis.

A good percentage of accidents, lessons to be learnt, arise from Muppet's who work out of catalogues.

Answer 6

The first three answers are rubbish - as the last guy says bolts usually have threads only part way on the shaft and set-screws have threads all the way to the head.

Answer 7

A bolt is part of a structural joint and carries shear and possibly tension loads.
A set screw is usually set into the side of a pin to lock it into place. It carries no load from the joint. It keeps a shaft or pin from rotating or sliding out of position.

Answer 8

What Is A Set Screw

Answer 9

a set screw has a self tapping scre head in it which means it makes its own hole as it is screwed in, a bolt is more fine and does not have a self tapping head and needs a nut to use it

Answer 10

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i was taught that a screw goes into wood or threaded metal and doesnt require a nut. a bolt goes through wood or metal with a nut on the end. who knows...