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Glossary of Fastener Terminology
K
K
Factor: The factor in the torque tightening
equation: T=KDF where T is the fastener tightening
torque in Newton metres, D is the fastener diameter
in metres, F is the fasteners preload in Newtons and
K is a factor whose value is often taken as 0.2. The
formula gives the approximate tightening torque for
standard fasteners used under normal conditions.
Keps:
A pre-assembled nut and washer assembly (the
washer is attached to the nut so that it won't fall
off)- a trademark of ITW Shakeproof. The origin of
the word came from ShaKEProof. The s on the end
being acquired due to them being purchased in
quantities usually greater than one.
Knurling: Knurling is the process of
producing a roughened surface by means of a
specialized forming tool called a knurl.
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