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Screw torque
#6169070
02/04/16 12:55 PM
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Joined: Feb 2013
Posts: 1,389
BassCat'99
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What is the torque for rail screws, ring cap screws and the nut for picatinny type scope rings? Also which to use green or blue thread locker? Lots to learn, thank you.
22 Creedmoor
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Re: Screw torque
[Re: BassCat'99]
#6169078
02/04/16 01:02 PM
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Joined: Aug 2009
Posts: 22,716
BigPig
THF Celebrity
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Depends on the manufacturer. But my SWFA rings are torqued to 30in lbs on the bolt and 18in lbs on the screws. My Burris PEPR is 40in lbs on the bolts and 25in lbs on the rings
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Re: Screw torque
[Re: BassCat'99]
#6169108
02/04/16 01:21 PM
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Joined: May 2011
Posts: 8,239
Double Naught Spy
THF Trophy Hunter
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THF Trophy Hunter
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Posts: 8,239 |
25 in lbs is what the last two sets of ring caps have been based on instructions that either came with the rings or the scopes.
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Re: Screw torque
[Re: BassCat'99]
#6169221
02/04/16 02:37 PM
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Joined: Dec 2009
Posts: 5,455
Big Fitz
THF Trophy Hunter
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Aluminum rings 15 in-lbs max Steel rings 20 in-lbs max Bases 30 in-lbs Seekins/Vortex rings recommend 45-50 in-lbs for their two base screws. Action screws I've seen recommended broadly from 35 up to a precise 53 in-lbs for AICS
I use blue Loctite on the rings.
I was wrong...on anything technical. Fitz............. is right, ya know............
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Re: Screw torque
[Re: BassCat'99]
#6169410
02/04/16 04:36 PM
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Joined: May 2009
Posts: 2,016
SingleShot85
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Cap screw torque depends on how many screws there are. Most 4 screw rings will range from 15-20 inch lbs
Base to action depends on if you are using 6-48 or 8-40s so 15-25 inch lbs respectively
Rings to base 45-60 inch lbs depending on material used in both sets
Action screws anywhere fro 30-80 inch lbs
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Re: Screw torque
[Re: BassCat'99]
#6169899
02/04/16 11:54 PM
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Joined: Feb 2013
Posts: 1,389
BassCat'99
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You guys are great, thanks. The rings are DNZ 4 screw, 1/2 hex nut on rail cross bolt and the rail screws are 6-48tpi
22 Creedmoor
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Re: Screw torque
[Re: BassCat'99]
#6170032
02/05/16 01:37 AM
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Joined: Dec 2008
Posts: 41,171
J.G.
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THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
Half a turn before it breaks.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
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Re: Screw torque
[Re: BassCat'99]
#6170059
02/05/16 01:53 AM
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Joined: Feb 2013
Posts: 1,389
BassCat'99
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Yea, I went the whole turn, it broke
22 Creedmoor
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Re: Screw torque
[Re: BassCat'99]
#6170275
02/05/16 05:28 AM
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Joined: Jan 2011
Posts: 2,394
booradley
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Warne, Leupold and Burris state the inch pounds in the package.
On risers with a 1/2 " nut I normally see 65 inch pounds but I normally use 50 inch pounds. On base and ring screws most of the time it is 20-25 inch pounds. I use blue loctite on base screws and nothing on ring screws.
Don’t roll those bloodshot eyes at me.
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Re: Screw torque
[Re: J.G.]
#6170385
02/05/16 01:35 PM
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Joined: May 2009
Posts: 2,016
SingleShot85
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Half a turn before it breaks.
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