Author Topic: License Plate Bolt Size?  (Read 12969 times)

0 Members and 1 Guest are viewing this topic.

Offline zwish

  • Full Member
  • *
  • Posts: 25
License Plate Bolt Size?
« on: October 04, 2011, 05:21:16 AM »
Dumb question here.  I was out on a ride last night and I guess my license plate wasn't on that tight...fell clean off!  I recovered the plate, but it was dark and couldn't find the bolts.  I'm going to stop at the hardware store on my way home.  Anyone know the bolt size for motorcycle license plates?  I don't know the thread width.  Thanks! 
« Last Edit: October 05, 2011, 09:08:59 AM by zwish »

Offline ekpent

  • Really Old Timer ...
  • *******
  • Posts: 13,512
  • To many bikes-but lookin' for more
Re: License Plate Bolt Size?
« Reply #1 on: October 04, 2011, 06:09:02 AM »
Think I just use a short 1/4" diameter bolt with a slot head with a lock nut. I have been known to swap the plates around just a little also.  8)

KingCustomCycles.com

  • Guest
Re: License Plate Bolt Size?
« Reply #2 on: October 04, 2011, 06:16:56 AM »
1/4x20 with a lock nut or acorn nut in stainless.  Unless it is a 25K Sandcast then you will need to determine original pitch and thread as well as surface treatment.  :-)

Offline MoMo

  • Really Old Timer ...
  • *******
  • Posts: 8,275
  • Ride like you're invisible
Re: License Plate Bolt Size?
« Reply #3 on: October 04, 2011, 06:25:34 AM »
1/4x20 with a lock nut or acorn nut in stainless.  Unless it is a 25K Sandcast then you will need to determine original pitch and thread as well as surface treatment.  :-)


and documentation, too :P :P...Larry

Offline zwish

  • Full Member
  • *
  • Posts: 25
Re: License Plate Bolt Size?
« Reply #4 on: October 04, 2011, 06:33:00 AM »
Think I just use a short 1/4" diameter bolt with a slot head with a lock nut. I have been known to swap the plates around just a little also.  8)

....shhhhhh   :-X

Offline ekpent

  • Really Old Timer ...
  • *******
  • Posts: 13,512
  • To many bikes-but lookin' for more
Re: License Plate Bolt Size?
« Reply #5 on: October 04, 2011, 06:36:46 AM »
1/4x20 with a lock nut or acorn nut in stainless.  Unless it is a 25K Sandcast then you will need to determine original pitch and thread as well as surface treatment.  :-)
   If it doesn't have an 8 stamped on the head it can't be used on a Sandcast !!!  :o

Offline johnny

  • Hot Shot
  • ***
  • Posts: 315
Re: License Plate Bolt Size?
« Reply #6 on: October 04, 2011, 11:10:18 AM »
1/4x20 with a lock nut or acorn nut in stainless.  Unless it is a 25K Sandcast then you will need to determine original pitch and thread as well as surface treatment.  :-)

My thoughts exactly. Just buy a package of shorter stove bolts with nuts and washers. They are good to have on hand anyways.
1976 CB550K
1974 CB350F http://forums.sohc4.net/index.php?topic=81781.0
1974 CB550K
1972 CB350 Twin
1965 Lambretta
196(?) Honda S90
1975 Ford Bronco

Offline markb

  • When I finish my current project I might be a
  • Master
  • *****
  • Posts: 1,615
Re: License Plate Bolt Size?
« Reply #7 on: October 04, 2011, 12:38:31 PM »
1/4x20 with a lock nut or acorn nut in stainless.  Unless it is a 25K Sandcast then you will need to determine original pitch and thread as well as surface treatment.  :-)
   If it doesn't have an 8 stamped on the head it can't be used on a Sandcast !!!  :o
;D ;D ;D ;D
1969 CB750 sandcast #97 restored - Sold Restoration thread link
1969 CB750 sandcaxt #576 - Sold
1969 CB750 sandcast #1553 - Sold
1969 CB750 sandcast #1990 - Sold
1969 CB750 sandcast #5383 restored - Sold Restoration thread link
1970 CB750 K0 restored - Sold
2010 H-D Tri Glide Ultra Classic (Huh?)