Using Lock Washers on Sockethead Cap Screws

[oskar]

The attached pictures shows the Z axis plate which will support the water cooled spindle plate. There are 16 M5 SHCS 1/2" long. I just wonder if a lock washer will serve any purpose. In any case the spindle bracket on top of these screws will prevent them from moving.

For information this is for a 3×4 feet table top mill I build all in aluminum flat bar/plate, with 4 stepper motors and a VFD controlled water cooled spindle.

Thanks

 

[benmychree]

Lock washers are available for SHCS that fit the same counterbore as the fastener.

 

[Eddyde]

^ +1, McMaster Carr has them.

 

[Weldingrod1]

Um, I hate to tell you this, but "lockwashers" don't do either function. They actually make your bolts MORE prone to vibration loosening.

If you want them to stay put, use loctite or Nord-lock washers.

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[extropic]

Um, I hate to tell you this, but "lockwashers" don't do either function. They actually make your bolts MORE prone to vibration loosening.

If you want them to stay put, use loctite or Nord-lock washers.

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What he said.

I'd use medium strength grade (Blue) 242 Loctite, so disassembly isn't too difficult.

 

[oskar]

I'm not asking where to find lock washers, only if they are recommended.

I will have a look at Nord-lock washers to see if they are available in my area

Blue 242 Loctite looks the best alternative

Many thanks to all

 

[Weldingrod1]

Yep, loctite.. easy and it just works.
As long as both parts are NOT inactive (sst, Al, Ti)

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