Installation Procedure
KATO CoilThread Locking Inserts - Locking Coil Characteristics
CoilThread Locking inserts exert a prevailing torque on male threaded fasteners to prevent loosening due to vibration or impact. They eliminate the need for other, less desirable and costly locking mechanisms. They are excellent in adjusting screw applications by preventing the male fastener from creeping.
How CoilThread Locking Inserts Work:
One or more of the coils in the locking insert has a series of straight segments. Upon entry of the bolt these straight segments are flexed outwardly, creating pressure on the bolt. This pressure is applied between the flanks of the bolt thread so that contact area is maximized. It is often possible to realize cycle life far in excess of specification requirements. For additional information on prevailing torque, please read these articles: Locking Insert FAQ, Locking Torque Differences, and Torque Basics.
Location of Locking Coils:
For 1, 1-1/2 and 2 diameter lengths: The center of the locking coil (coils) equals 1/2 the number of free coils.
For 2-1/2 and 3 diameter lengths: The locking coil is located the same distance from the tang as the 2 diameter length inserts.