Heavy duty keylocking threaded insert KLTI-HD-M4-070-LSS

KNHML4X0,7 Keenserts heavy duty metric locking type

M4x0.7 metric coarse internal thread (locking) and M8x1.25 external thread – 303 stainless steel

The heavy duty M4 x 0,7 keylocking insert results in an increased thread strength in low strength materials such as alloys or other light materials. The external thread of this insert is M8 x 1,25. This insert can also be used in steel and cast iron.

Although these type of inserts are typically used in a production environment, they are also popular as a high quality thread repair solution to replace a damaged thread with the same size thread.

KLTI-HD-M4-070-LSS keylocking insert, alternative for KNHML4X0,7 Keenserts



Reference partnumber: KNHML4X0,7

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Internal thread
  • M4 x 0,7
  • Tolerance: 5H
  • Locking thread by elliptical deformation
  • Max. depth to end of thread lock: 8 mm

External thread
  • M8 x 1,25 
  • Tolerance: 4h
  • # Keys: 2

Material & finish

Stainless Steel 303 CRES + passivation + dry film lubricant

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In these catalogues you will find all the spec sheets with dimensions and drawings.

KLTI-HD-M4-070-LSS drawing

drawing of keylocking insert with same dimensions as Keenserts KNHML4X0,7