Compound used on the fixed buttstock screw?

[Newaza]

What compound (red color) is routinely used for the fixed buttstock screw?

[GTifosi]

Loctite

[markm]

I use Vibratite VC-3. It's the closest thing I've found. It works good on rings, bases, and all that stuff too.

You apply it and let it set up on the fastener... and you can leave it on there. Unlike loctite where you apply it and assemble immediately.

I have the blister packs of VC-3 all over. I forget what Gun item I bought that had it included, but it's good stuff.

[GTifosi]

and you can leave it on there. Unlike loctite where you apply it and assemble immediately.ff.

Not all versions of loctite need immediate assembly. Some even call for an apply then wait to cure timeframe or provide for the ability to apply then set aside for an indefinite amount of time before installing.


As an aside, I grabbed the spec text for loctite blue 242 which doesn't call for a set time pre-assembly, but can be left til you're ready to put things together.
Its an anti-vibration formula and does carry a mil-spec reference number if one wanted to cross reference it to the specific intended uses.

Its not a permanant type and doesn't require heat to break it loose once set.

After 1 hour @ 72°C (22°C):
Breakaway Torque (ISO 10964):
3/8 x 16 steel nuts (grade 2) and bolts (grade 5)
Prevail Torque (ISO 10964):
3/8 x 16 steel nuts (grade 2) and bolts (grade 5)
50 to 150 lb.in. (5.6 to 17 N.m)
15 to 60 lb.in. (1.7 to 6.8 N.m)

After 24 hours @ 72°C (22°C):
Breakaway Torque (ISO 10964):
3/8 X 16 steel nuts (grade 2) and bolts (grade 5)
3/8 x 16 cadmium nuts and bolts
3/8 x 16 zinc nuts and bolts

M10 black oxide steel nuts and bolts
70 to 150 lb·in (7.9 to 17 N·m)
10 to 60 lb·in (1.1 to 6.8 N·m)
20 to 60 lb·in (2.3 to 6.8 N·m)
71 to 168 lb·in (8 to 19 N·m)

Prevail Torque (ISO 10964):
3/8 x 16 steel nuts (grade 2) and bolts (grade 5)
3/8 x 16 cadmium nuts and bolts
3/8 x 16 zinc nuts and bolts
25 to 60 lb·in (2.8 to 6.8 N·m)
4 to 40 lb.in (0.5 to 4.5 N.m)
10 to 40 lb.in (1.1 to 4.5 N.m)

Specifications: Tested to the requirements of:
�� Military Specification Mil-S-46163A

[Newaza]

Thanks guys, I appreciate it.