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The Fastener Specialist 
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Glossary of terminology on topics related to nuts and bolts, threaded
fasteners and tightening techniques....

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.

LOCK NUT
There are two common usage's of this term:
1. A nut which provides extra resistance to vibration loosening by either providing some form of prevailing torque, or, in free spinning nuts, by deforming and/or biting into mating parts when fully tightened.

2. The term is sometimes used for thin (or jam) nuts used to lock a thicker nut. When used in this way the thin nut should be adjacent to the joint surface and tightened against the thick nut. If placed on top of the thick nut the thin nut would sustain loads it was not designed to sustain difficulties may prevent its widespread adoption.

LENGTH OF ENGAGEMENT
The axial distance over which an external thread is in contact with an internal thread.

 
 
  Glossary of terminology on topics related to nuts and bolts,
threaded fasteners and tightening techniques....

LEFT-HAND THREAD
A screw thread that is screwed in by rotating counterclockwise.

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.

 
 

  The Fastener Specialist - Asia Bolts & Nuts Manufacturer of bolts and nuts, fasteners for export, all trade inquires welcome

 
 

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The Fastener Specialist - Asia Bolts & Nuts manufacturer of bolts and nuts fasteners for export. We are able to manufacture standard bolts Hot forging up to the following dimension: Diameter up to 64 mm or 2.5 inches Length up to 1 meter In accordance with the international standard such as ISO, Din BS, ASTM, JIS, ANSI and special requirements our Manufacturing Process: Expansion bolts, Chemical anchors & studs, F10T High Strength Friction Grip bolts & nuts, Grade 4.6, 4.8, 5.8, 6.8, 8.8, 10.9 & 12.9 fasteners ASTM A325 high strength Structural bolts & nuts

Asia Bolts & Nuts manufacturer can supply quality bolts, nuts, and a wide range of bolts, nuts and fasteners to the SUS 304, 316 stainless steel bolts, nuts, U-bolts & studs Various types of Customized Anchor bolts, U-bolts, Eye bolts, Plow bolts, Carriage bolts, Couplers & Inserts etc., Cast-in anchors, Hex socket cap & set screws, F10T High Quality tension control bolting, ASTM A193 Grade B7 stud bolts with A194 2H nuts