Sockets
Products
Socket
Head
Cap Screws
Socket
head cap screws are often used in assemblies with
counterbored holes. The head height is equal to the
nominal diameter. For sizes 1/4" and larger the
head diameter is equal to one-and-a-half times the
nominal diameter.
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here for more information about socket head cap screws.
Flat
and Button Socket Cap Screws
Flat socket head cap screws are used when the top of
the screw head is to be flush with one of the assembly
surfaces. The underside of the screw head and the accompanying
hole are countersunk at an 82-degree (includes angle).
Flat socket head cap screws are preferred over slotted
flat head cap screws if assembly and disassembly are
frequent because the drive is less likely to strip with
repetitive use.
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here for more information about flat and button socket
cap screws.
Allen
Head Cap Screws
Allen head cap screw is another name for socket head
cap screw. In 1943 the Allen Manufacturing Company of
Hartford, Connecticut trademarked the name "Allen
Keys" for its hex wrenches.
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here for more information about allen head cap screws.
Square
Head Set Screws
Set screws are often used to keep a pulley, gear, or
similar disc-shaped object attached to a shaft. One
advantage of a square head set screw over a socket set
screw is that it is externally wrenched. With a socket
set screw grease and dirt may pack into the broach and
render it incapable of disassembly.
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here for more information about square head set screws.
Socket
Set Screws
Certain applications require a screw which is buried
completely in a tapped hole in one of the material surfaces.
This is a job for a socket set screw.
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here for more information about socket set screws.
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