Specialist threaded fasteners available ex-stock
from Challenge Europe in high grades of material include socket screws for
production, incorporating milled sides (cap heads) so they may be easily spun
up by hand and of course with a recessed hex drive which enable machine feed
and torqueing on the assembly line.
Other specialist socket screws include button
head/dome head designs which give improved appearance, lower profile and a
smooth finish. They also offer more clearance with less vulnerability to
interference, either to clothing or to other equipment passing over and are
ideal for floor fixings as they present less of a trip hazard.
Socket head cap screws are generally more
considered for engineering use at the elite end of the fastener range, by
virtue of their more precise production tolerances - and historically being
more commonly of 12.9 grade they are engineered for use at the top end of the
precision spectrum.
In particular the socket head shoulder screw
variant features a plain shank with a ground surface for location – “a dowel
with a thread”, especially useful for tooling applications where a lower
clearance is desirable, e.g. for locating with precise fit, but it can also be
used to provide a bearing surface.
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