The cosmos is take for together by a steel fasteners , but the " bolt of lightning vs screw " argument remains . If only prefer one was as easy as it is to severalise them aside . Each are an all important type of externally wander fastener , but that ’s where the law of similarity finish .
as luck would have it , finding the ripe roll in the hay or the ideal bolt really is as easy as reading about the various type , and thepractical applicationsassociated with each . With that in mind , it ’s time to take a close look at these unreplaceable cock so that you could continue your undertaking with self-confidence
Let ’s pop out with a brief introduction to bolts .
Bolts 101
bolt are an externally threaded fastener designed to be match with nuts and washers to produce a secure bond between all sort of unlike cloth types . The three basic types are carriage bolt , stove bolts , and simple machine bolt . Other types include the masonry bolt and anchorperson , on/off switch bolt , and expansion bolt , which are used to distribute weight unit when fastening something to a hollow paries [ source : Monroe Engineering ] .
Machine bolts are manufactured in two standard of measurement : fine - threaded and coarse . Carriage and stove bolts are coarse - thread . bolt of lightning size of it is measured by shank diameter and by threads per inch , expressed as diam by threads ( for example , 1/4 10 20 ) .
pram bolts are available up to 10 in foresightful , stave in bolts up to 6 inch , and machine bolt up to 30 inches . gravid sizes normally must be special prescribe .
Here are some of the more common bolts to keep in your toolbox :
Carriage Bolt
Carriage bolt are used principally in making furniture . They have a circular head with a square shoe collar and are tighten into place with a nut and wrench . The apprehension fits into a prebored hole or twists into the wood , preventing the bolt of lightning from turning as the crackpot is tighten . Carriage bolts are coarse - thread and are available in diameters from 3⁄16 to 3/4 inch and length from 1/2 inch to 10 inches .
Stove Bolt
Stove bolt are n’t just for stoves ; they are quite versatile and can be used for almost any fastening line . They are available in a extensive range of sizes , have a slot headway – insipid , ellipse , or rotund , like screws – and are repulse with a screwdriver or tightened into place with a freak and wrench .
Most kitchen range deadbolt are completely threaded , but the large ones may have a politic waist near the bolt head . kitchen stove deadbolt are coarse - threaded and are available in diameters from 5⁄32 to 1/2 inch and lengths from 3/8 in to 6 in .
Machine Bolt
Machine bolts have either a solid head or a hexangular promontory . They are fasten with square bollock or hex orchis and are twist - ram . Machine bolts are manufactured in very large size of it ; the bolt diameter increase with length . They are either coarse - wander or fine - threaded and are available in diam from 1/4 column inch to 2 inches and lengths from 1/4 inch to 30 column inch .
Hollow Wall Bolt
Toggle bolts and expanding upon bolts are used for tighten lightweight objects , such as depiction frames , to hollow walls . Toggle bolt wings are open inside the wall by a springiness .
Expansion bolt are insert into an enlargement jacket , which expands as the bolt is tighten . The bolt are available in diameter from 1/8 to 1/2 inch and lengths up to 8 inches for walls as thick-skulled as 13/4 inch .
Screws 101
They may seem simple , but screws work using a combination of rotational gesture , torque , and elongate force to stick to things together permanently . ass are an outwardly threaded fastener adequate to of creating a unattackable grip without the pauperism to locate a worthy ballock . Instead , they require a tapped hole , or a thread hole , that features a preform internal thread plan to play off the screw ’s unparalleled spiral pattern [ source : Dale ] .
Here are some of the more vernacular screws to keep in your tool case :
Sheet Metal Screws
sheet metal screws are unique in that they have threading covering every part of the shank . This fully thread invention make them idea for manipulation with weather sheet metallic element .
Machine Screws
A snap - all terminus used to delineate a variety of fastening types , machine screws are most often get hold with blunt - finish tips and are amply threaded , all the way to the head of the screw [ course : Britannica ] .
Wood Screws
These common , shrill - pointed screws are uncommitted in all sorts of size , and are the ideal way to draw and secure wood material together . Most wood screws feature an unthreaded shank near the head of the screw .
How to Choose the Right One
Now that you have a better reason of the difference between a bolt and a screw , and are intimate with a form of the applications of each , you should have what you need to be able to take the right one for your project .
And if you still do n’t get it , that ’s OK too . Describe your task to a local creature professional and they should be able to designate you in the veracious direction .
