Ads
related to: difference between bolts and screw capsebay.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
An ASME B18.2.1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head height and the shank length. The nature of the tolerance difference allows an ASME B18.2.1 hex cap screw to always fit where a hex bolt is installed but a hex bolt could be slightly too large to be used where a hex cap screw is designed in. Fine ...
This definition allows ambiguity in the description of a fastener depending on the application it is actually used for, and the terms screw and bolt are widely used by different people or in different countries to apply to the same or varying fastener. In British terminology, a cap screw is a bolt that has threads all the way to the head.
The difference between a screw and a bolt is that the latter is designed to be tightened or released by torquing a nut. The screw head on one end has a milled slot that commonly requires a tool to transfer the twisting force. Common tools for driving screws include screwdrivers, wrenches, coins and hex keys.
Standard 12-point hex socket bits and wrenches fit these screws. The screw heads are typically flanged, and may fit into standard Allen hex socket cap screw counterbores molded or machined into parts to be fastened. Compared to Allen hex sockets, the advantages of these bolts include higher torque capability and the lack of a recess to trap water.
On a shaft, this may be simply a flattened area. A set screw may have any type of drive, such as hex or square head, slot, or recessed --- cross (Phillips), hex (Allen), star (Torx), or square (Robertson). In the UK, the term "set screw" or "setscrew" refers simply to a bolt which is fully threaded, with no smooth shank; called cap screw in the US.
Distinctions between bolts, and cap screws have been made based on the length of the threaded area with cap screws being threaded almost to the head and bolts being threaded only partially up the the shaft. Distinctions between bolts and screws have been made based on the whether the fastener was intended to be attached with a nut or not.
Ads
related to: difference between bolts and screw capsebay.com has been visited by 1M+ users in the past month