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Chuck Lock Nut?

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Munty Scruntfundle

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Hi folks.

Having fitted my reverse switch, and as pointed out by people here, I really need to have a locking nut. Can anyone suggest a supplier of 1" 8tpi nuts? And or washers?

Many thanks.
 

Dalboy

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Munty Scruntfundle":12q6vv97 said:
Hi folks.

Having fitted my reverse switch, and as pointed out by people here, I really need to have a locking nut. Can anyone suggest a supplier of 1" 8tpi nuts? And or washers?

Many thanks.
The locking device is normally a grub screw fitted on a collar which is part of the chuck. this may mean buying a new chuck with this facility on it.
 

Trevanion

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A lock nut would really do nothing more than what already exists when the chuck is tightened against the registry face on the spindle. Adding a nut is only adding a new registry face and nothing more, if anything it’s probably more unsafe as there’s less threads engaging with the chuck.

As Dalboy said, the chuck itself needs a grub screw which engages on the bare spindle behind the threads, most are fitted with them already.
 

CHJ

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The locking screw is located so that it engages in the rear thread relief groove just in front of the spindle locating register.
chuck1.jpg
chuck2.jpg
 

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