Precision Locknuts Replacement

Precision Ground Locknuts

A new range of precision ground locknuts are now available on quick delivery, ISO 4H, DIN42Cr Mo4 quality to suit shaft sizes 6mm – 200mm with axial and Radial clamping .ideally used in machine tool Spindle & Ballscrew applications

Products and service:

  • Precision Locknuts for Bearings
  • Firm Fastening Locknuts
  • Custom Locknuts
  • Product Design and Development

To discuss your requirements or for assistance please do not hesitate to
contact us

Why use our locknuts?

When applied to a rotating spindle / ball screw of a machine, it will effectively prevent it from distortion and improve precision of assembly.

Our Locknuts give you simple set up, and prolong the life of your machine.

When applied to other areas, the problems of measuring, adjusting and the deformation after the bolt is locked etc, can all be improved significantly.

Locknut features:
  • Thread precision of ISO 4H
  • High load carrying capacity
  • Easy correction to a right angle against axis
  • Lock without a washer or keyway
  • Save assembly time with increased precision and save cost
  • Effectively prevent spindles and ball screws from distortion
  • Prolong the life of bearings and machines
  • Easy to assemble and disassemble
  • Can be reused if handled properly

MF Series - Flank Locking

  • The setscrews of locknut intersect at a 30˚ angle with the radial axis which
    drive the locking brass to be perfectly stuck on the thread flank of shaft.
  • No thrust washer or keyway needed.
  • Easy to assemble and disassemble.
  • Can be reused if handled properly.
  • The connecting face and thread area are all produced by a high precision
    grinding process.
  • Material - SCM 440
  • Hardness - HRC 28-32
  • Precision - ISO 4H


MF Series
Precision Ground Locknuts
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Registered in England, registration number 05630883. 
Registered Office: Unit 7 Park Court, Park Lane Business Park, Kirkby in Ashfield, Nottinghamshire. NG17 9GW