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Author Topic: Drill and tap for scope ?  (Read 472 times)

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Offline Redhawk1

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Drill and tap for scope ?
« on: December 18, 2003, 01:34:02 AM »
Off hand I forgot the size of the standard threads size for mounts for a scope. Is it 6-32 or 6-40?
Thanks in advance.
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Offline John Traveler

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thread size
« Reply #1 on: December 18, 2003, 11:08:09 AM »
The US standard guns screws are 6-48 and 8-48.
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John Traveler

Offline KN

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Drill and tap for scope ?
« Reply #2 on: December 18, 2003, 11:57:47 AM »
I have used 6-40 screws plenty of times with no problems. Just use good lock tite.  KN
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Offline Iowegan

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Drill and tap for scope ?
« Reply #3 on: December 20, 2003, 05:20:46 PM »
You're bouncing around the right ones... 6X48 and 8X40 are the standard sight / scope threads.
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GLB

Offline Bug

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I Agree,
« Reply #4 on: December 21, 2003, 03:43:10 PM »
With Iowegan :)
 Most STANDARD holes are 6x48. The ones with some forethought, or that have been redone are 8x40. But, there are still some oddballs floating around out there, not to mention the METRIC sizes! (shudder!)....Bug.
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