What's the difference between a bolt & a screw?
Answers:
a bolt is used with a nut to fasten and a screw holds by attaching itself to the product.
unless you were talking about a whorehouse
Other answers:
bolt flat tip goes with a nut
screw goes in wood, pointed tip
bolt flat tip goes with a nut
screw goes in wood, pointed tip
I bolted when I got screwed...
Historically the difference between a bolt and a screw was that the screw was threaded to the head whereas the bolt had a plain shank. However I would say that now this could cause you a problem if you made this assumption when specifying a fastener. The definition used by the Industrial Fastener Institute (IFI) is that screws are used with tapped holes and bolts are used with nuts.
Obviously a standard 'bolt' can be used in a tapped hole or with a nut. The IFI maintain that since this type of fastener is normally used with a nut then it is a bolt. Certain short length bolts are threaded to the head - they are still bolts if the main usage is with nuts. Screws are fastener products such as wood screws, lag screws and the various types of tapping screws. The IFI terminology and definition has been adopted by ASME and ANSI.
A bolt works also as a screw, but is usually larger in diameter.
Also, a screw usually just holds something in place (axial stress), whereas a bolt often has to be strong in radial direction.
Finally, a bolt always has a "counterpart" to screw into, like a nut or a thread cut into a material. There are no "wood bolts".
For a bolt, head is big and strong which need spanner for tighten, A screew has small head and needs screw driver with sharp and flat end for tigntening,
Both are used for bonding of 2 or more sections. Bolts for heavy and screw for lighter sections.
In conventional way screw meaninig different too...like your boss screwed you...etc.etc...one more slang meaning too
A screw, whether it be for metal,plastic, or wood, is designed to secure an object by directly embedding itself in the material.
A bolt, is designed to go through the material, and secure an object by clamping it between the bolt head, and either a nut, or a threaded socket.
Usually, a bolt has a flat end, where the threads start... a screw is usually pointed, so it will "dig in" better. The threads themselves are cut differently also, depending on what the bolt, or screw, is made to work in, or hold.
Either a screw or bolt may be threaded all the way, or only part of the way... all depends on the application. You can do a search on Yahoo for images of each, but here are a couple.
Pic of a typical screw - what is asbestos siding worth if you want to sell full pieces?