GTA
All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: Mike T. on January 07, 2021, 05:01:42 PM
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I have reported this problem to Pyramid Air and I am awaiting feedback. I am wondering if anyone had this problem and how was it resolved. Are there replacements available elsewhere.
I am talking about the itty bitty little screw that visible in the breech near the magazine magnet.
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Find a hobby shop in your area that has rc model planes and cars, most have a display of many small screws and fasteners, have done that for scope and other gun parts, usually quite cheap too, bags of 4 or 5 screws $4 or $5
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I had the exact same issue. Was able to find a screw at the hardware store that was almost identical, just a big longer. Was able to make it work by cutting it down with dremel.
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Thanks for the input!
I live in a small town in the Ozarks. The nearest big hobby shop is probably 200 miles away. The local hardware store closed several years ago. I will try the two big box stores. They seem to have a lot different screws.
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Maybe an ACE Hardware nearby?
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It was the ACE hardware that went out of business.
If my motivation becomes great enough I can try the next town that is 40 miles away.
Big box stores first.
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There is always McMaster Carr as well ..good luck.
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It was the ACE hardware that went out of business.
That is not a good thing. I am very fortunate to have two within a five-mile radius of my place.
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Do you have a caliper to measure the threaded hole inside diameter? Or some drill bits to use as a pin gauge to check size? I can probably give you some possibilities.
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if memory serves me correct its either m2.5 or m3.. those dont come in a wide variety of pitches so it should be easy to find ( especially if it m3
if its m3 theyre about 12 ccents
https://www.boltdepot.com/Metric_socket_flat_head_Class_12.9_alloy_steel_black_oxide_finish_3mm_x_0.5mm.aspx (https://www.boltdepot.com/Metric_socket_flat_head_Class_12.9_alloy_steel_black_oxide_finish_3mm_x_0.5mm.aspx)
i dont know the length , but my guess is about 8mm
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Thanks for the suggestions!
I will measure what I can and get back to you.
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heres an assortment that covers all possibilities
https://www.amazon.com/Notebook-Replacement-Assortments-Electronic-Packaging/dp/B08QNBC8GN/ref=sr_1_1_sspa?dchild=1&keywords=m2.5+screws&qid=1610289521&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFTUEI1NFlOWkdVVTgmZW5jcnlwdGVkSWQ9QTA0NzM3OTIyUFdUMVNZUURYTVpDJmVuY3J5cHRlZEFkSWQ9QTAwNjU5MTExUTBCVkVZVVJCRlNJJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ== (https://www.amazon.com/Notebook-Replacement-Assortments-Electronic-Packaging/dp/B08QNBC8GN/ref=sr_1_1_sspa?dchild=1&keywords=m2.5+screws&qid=1610289521&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFTUEI1NFlOWkdVVTgmZW5jcnlwdGVkSWQ9QTA0NzM3OTIyUFdUMVNZUURYTVpDJmVuY3J5cHRlZEFkSWQ9QTAwNjU5MTExUTBCVkVZVVJCRlNJJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==)
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I measured the diameter of the hole with a drill bit. 7/64 or about 2.8 mm
I measured the screw with a pair of cheap electronic calipers. I had difficulty getting a consistent measurement. About 2.8 mm
In the meantime I dropped the screw onto my carpet where blends in nicely with the stains and fragments of fly tying feathers.
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Going from sight and memory, I too was thinking M3 but your
measurement suggests it’s the less common M3.5. Tap drill size for an M3.5 is approx 2.9mm.
Your 2.8mm measurement is a close match, and it’s both too large for an M3 and too small for an M4. So from the information provided, it’s an M3.5.
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there should be a disparity between the hole size , and the threads on the screw.. If the screw threads diameter were 2.8 , its an M3 -.50 screw .. but that should also mean the hold size is about 2.45
Jason has the right numbers for the 3.5mm ..2.5 would be the hole diamter in the threaded hole, not the pass through hole.. I think you measured the pass through hole by mistake,so back to my guess of m3 -.5 .. The pass through hole is on the breech , the threaded hole is on the tube as i recall
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Rob, I’m still doubtful it could be an M3. If a 2.8mm shank can pass through the hole and an M3 has a major diameter of 3mm. That leaves just 0.1mm thread engagement, or less than 4 thousandths of an inch...the thickness of a sheet of copy paper.
So I’m sticking with M3.5.
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you may be right , but i think hes measuring the wrong hole.. He said he measured the screw itself major diameter at 2.8 , that wouldnt corrrespond to an m3.5 screw..
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Measuring the wrong hole may be what I did. The holes were a bit out of alignment so I wasn’t able to fully insert the drill bit.
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M3 100 %, 5 mm total length, head diameter 5.6 mm, thread length 3mm ...
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Atom, thank you for confirming.
Rob, sorry, I missed where 2.8mm was given as the screw’s major diameter. I was going by 2.8mm being the max size shank that passes through the tapped hole.
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Jason no issue , were just trying to be helpful and guessing based on info provided
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My bet is on the M3.5-.6 screw.
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Does kind of tick me off….parts situation.
It’s a simple screw. One that SPA has used under a whole lot of brand names (including Diana) and has used on 5 or 6 different co2/PCP rifles/pistols (all sharing the same basic breech/breech screw).
And yet, finding a replacement part is a royal PIA. Been looking….not finding.
Been following...NOT asking how it’s broken..at least until now.
If it “broken -broken” like snapped? Allen head rounded off so the allen won’t fit any longer?...or are the threads stripped, which could be the threads on the screw or the threads into the air tube?
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The screw is broken, like snapped. This also happened right after I received the gun. Then I was able to replace the screw because Pyramid Air had accidentally sent me a replacement breech kit which included the screw.
I just got off the phone with a “support” guy. I discussed three issues with him. One was the broken screw. His answer was that I should go to importer, Umarex. I quickly found that the importer is Air Venturi. And, of course, PA is the warranty organization. The initial email response from PA was obviously automated. It pointed me at various Crosman resources. I have responded to that email.
Last night I went to Lowe’s. They did not have replacement screw, but we verified that it is an M3. I ordered the assortment from Amazon.
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Last night I went to Lowe’s. They did not have replacement screw, but we verified that it is an M3. I ordered the assortment from Amazon.
If in fact, the 7/64”, (2.78mm), drill bit fit into the threaded hole, and the threads were good, that would leave only .22mm thread engagement between the screw and threaded hole. That would mean that the thread pitch would have to be about .2mm. Not very strong. Seems unlikely. Or perhaps the drill bit was not inserted into the threaded hole. Just does not add up to me.
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Under close examination with light and magnifier I could see that the threads were stripped.
I bought the suggested selection of screws from Amazon. The M3 5mm worked fit perfectly. I applied blue locktight and I think that I am back in business. I have 49 backup screws for the future.
PA finally pointed me to Air Venturi for warranty work. Air Venturi has not responded to the email that I sent yesterday.
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Under close examination with light and magnifier I could see that the threads were stripped.
I bought the suggested selection of screws from Amazon. The M3 5mm worked fit perfectly. I applied blue locktight and I think that I am back in business. I have 49 backup screws for the future.
PA finally pointed me to Air Venturi for warranty work. Air Venturi has not responded to the email that I sent yesterday.
good to hear it all worked out
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Under close examination with light and magnifier I could see that the threads were stripped.
If nothing else you should be able to upsize it to m3.5-.6 if needed.
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I forgot one last comment!
Thanks! I got this problem fixed due to all of your help!