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Sheered off my Dan Wesson scope base screws today
- Thread starter DW357
- Start date
Good question. I think one issue is that the screws aren’t long enough. This is all that is grabbing in the threaded holes in the shroud! They aren’t even close to reaching the end of the threads!
84ta406
NES Member
If it pulled the threads out I would agree but they sheared off above the threads so that's not the issue. You could go longer of course regardless.
Doesn't look like I had any loctite that I can see. Threads in the holes and on the screws look relatively clean.
And check out the remaining screw! It’s on its last leg before breaking!
Ahh okay.
Ray suggested grade 8 screws? What’s the best quality screw I could get? Any idea what the size/type of these screws? I don’t even know what to search for without knowing that info lol.
PistolShooter
NES Member
www.mcmaster.com will have exactly what you need
Is that a Warne scope mount? Looks like a Warne to me. I found a spec sheet for the DW 445 supermag, this kit uses a T15 (torx) screw. .128in or 3.27mm.
Here's the link
store.gravelagency.com
You could always do one of those rib vent mounts instead made by leopold, those are rock-solid, and rare af.
Here's the link
M630G : Warne 1pc Black Gloss Dan Wesson 445 Supermag VH Base
Maxima Multi-Sight System has a proven track record for success. Hugely popular with the Smith & Wesson L, K, & N frame revolvers, the Maxima line has now been expanded to include Ruger’s Redhawk and Blackhawk line of hunting handguns, and the Dan Wesson Large Frame 445 Supermag.A new addition...
store.gravelagency.com
You could always do one of those rib vent mounts instead made by leopold, those are rock-solid, and rare af.
PistolShooter
NES Member
Grade 8 is the highest you’ll find at a Home Depot but not the highest. Hard screws are not always the answer anyway since if they are from a crappy supplier that plates them, they become brittle if not baked out afterwards. A good supplier won’t have this problem.
Sweeney
NES Member
The scope mounts wasn't clamped well enough allowing it to work the screws in shear. The screws don't like that and surrendered. Install tubular dowels (around the screw holes) to take the shear perhaps.
84ta406
NES Member
Agreed, they had to have been loose. I think the lack of thread locker is to blame.
No it’s a factory Dan Wesson mount.Is that a Warne scope mount? Looks like a Warne to me. I found a spec sheet for the DW 445 supermag, this kit uses a T15 (torx) screw. .128in or 3.27mm.
Here's the link
M630G : Warne 1pc Black Gloss Dan Wesson 445 Supermag VH Base
Maxima Multi-Sight System has a proven track record for success. Hugely popular with the Smith & Wesson L, K, & N frame revolvers, the Maxima line has now been expanded to include Ruger’s Redhawk and Blackhawk line of hunting handguns, and the Dan Wesson Large Frame 445 Supermag.A new addition...
You could always do one of those rib vent mounts instead made by leopold, those are rock-solid, and rare af.
I’ve tried the clamp on mounts on my DW 357 and they sucked. Kept breaking loose and marred the shit out of the shroud. No way they would handle 44 mag.
Currently Unavailable | CZ-USA
shop.cz-usa.com
Another trick is to get someone who is REAL GOOD with a TIG welder (AND ONLY TIG !!!) to build up the screws until you have something to grab onto
www.instructables.com
Removing a Broken Bolt or Stud With TIG
Removing a Broken Bolt or Stud With TIG: Often when a bolt or stud breaks off, it breaks with a little bit protruding above the material it's threaded into. In this situation, it is sometimes possible to use a pair of vice grips or such, to facilitate the removal of the bolt. More times th…
www.instructables.com
Thanks. Looks like it may be these. But I’ll have to measure to confirm.
McMaster-Carr
McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
6 or 8 -32, but someone already mentioned that.
Look for a stainless alternative to anything thats available at lowes or h.d. I've snapped their "grade 8" stuff with little effort.
oldguy68
NES Member
You said you didn't use any Locktite on those screws.
That will make it easier and is a good thing in there removal.
They should spin freely or with a little ease to remove them.
The threads on the revolver should be fine as the screw heads just snapped off.
You didn't strip out or cross thread them.
So it's just a matter of turning what's left out.
Buy better quality screws and use a little blue Locktite.
Don't over do it. You don't need a lot of Locktite to hold them.
Just clean the screw holes and use a little alcohol to degrease the threads before you apply the Locktite to the new screws.
I've snapped bolt heads off and just spun the threaded part left over out with ease.
I still wouldn't risk it on such a nice revolver and would just wait and have it done right.
That will make it easier and is a good thing in there removal.
They should spin freely or with a little ease to remove them.
The threads on the revolver should be fine as the screw heads just snapped off.
You didn't strip out or cross thread them.
So it's just a matter of turning what's left out.
Buy better quality screws and use a little blue Locktite.
Don't over do it. You don't need a lot of Locktite to hold them.
Just clean the screw holes and use a little alcohol to degrease the threads before you apply the Locktite to the new screws.
I've snapped bolt heads off and just spun the threaded part left over out with ease.
I still wouldn't risk it on such a nice revolver and would just wait and have it done right.
Last edited:
Gun broken, no good to you. Me buy for $50, make wall hanger.
It appears they’re 6-48 screws. DW used Weigand scope mounts initially and in the product description it says you need to drill and tap 3 6-48 holes.
I found the exact screws. Flat Head Type D Screw 5/16 in. 6-48.
Amazon product ASIN B07J9HL4MMView: https://www.amazon.com/Numrich-Flat-Head-Screw-Thread/dp/B07J9HL4MM
Now just need to find them in a higher grade. Could also use a torx head as someone else suggested.
i bought this kit years ago to replace the straight slotted and phillips screws on alot of my stuff.
BROWNELLS TORX HEAD SCOPE RING & BASE SCREWS | Brownells
A TORX head lets you set a screw down tight without the bit slipping and damaging the screw slot. They give your work a clean, finished appearance. T-10 gives you plenty of additional wall thickness where the head joins the shank; T-15 has a large...
www.brownells.com
