DT15 and MG34 "share" a screw

[me6_130]

Not very important information but I have just realised that the two screws that hold the rear bipod retaining latch on the MG34 are the same kind as the eight that hold the drums on the DT15. I have a couple of spares and tried swapping and they worked fine. That for the MG34 is a bit longer, though. OMG, I feel stupid for posting this, sorry This lock down is getting me

Carles

[pzo]

Not bad at all These screws are not easy to find nowadays. Are they also suitable for screwing front plate?

[me6_130]

hello,

Someone who understands me

No, those are M3 while these are M4 aprox. I managed to buy about 100 for front plate and washers, in an old shop, not easy to find any longer. See pics

Carles

[timg]

Screw threads

Hi Carles,

I don't think a PDF will display on the forum, unless I am told otherwise.

If you are interested PM me your email address and I will send you over a handy document from the engineer workshops school on bolts and threads/pitches/ tap size holes etc.

Quite handy as it deals with multiple types of thread inclusive of the awkward british stuff like BA, BSP etc which is good for collectors such as ourselves, happy if you were able to convert it into something usable for the rest of the forum as its not exactly secret stuff.

Regards

Tim

[me6_130]

Hi Carles,

I don't think a PDF will display on the forum, unless I am told otherwise.

If you are interested PM me your email address and I will send you over a handy document from the engineer workshops school on bolts and threads/pitches/ tap size holes etc.

Quite handy as it deals with multiple types of thread inclusive of the awkward british stuff like BA, BSP etc which is good for collectors such as ourselves, happy if you were able to convert it into something usable for the rest of the forum as its not exactly secret stuff.

Regards

Tim

Thanks Tim,

PMing you right now. I sometimes find it difficult to give the right descriptions of some screw shapes, so I don't know how to look for them in the internet. Germans at least used Metric System and DIN, so quite standard.




PS: that screw for the PT little cover is called M3 x 18 mm Raised Slotted Countersunk Screw

Carles

[timg]

Thanks Tim,

PMing you right now. I sometimes find it difficult to give the right descriptions of some screw shapes, so I don't know how to look for them in the internet. Germans at least used Metric System and DIN, so quite standard.




PS: that screw for the PT little cover is called M3 x 18 mm Raised Slotted Countersunk Screw

Carles

Hi Carles,

You want to try an Army Catologue sometime

1572-99-876-248 BOLT, FIXING, HEX, CORSE, BRIGHT FINISH, M10-10MMX40MM OL ........Qty PK 50 or along those lines anyway

[timg]

screw docs

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more

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more 2

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[timg]

Screw docs explanatory

Hi Guys, the doc below is read by

Post 7 top image down

Post 8 top down

Post 9 top down

The sheets are the basic explanatory notes handed out to fledgling vehicle fitters and plant operator mechanics when I joined the R.E,s. They are basic as some guys would not have seen or been anywhere near a mechanical device. So to some you will know or have this stuff and knowledge already.

This is going back some 35 years now........so the old stuff is not used anymore its all metric.

However I thought they may be of some value as we are dealing with a lot of Historical kit here on the forum.

If its
of any use to you save and hold as per your wish.

Regards

Tim

[me6_130]

Hello Tim,

Thanks for the info. Thank God Germans made their things in Metric. I once had some problems with a Russian Mosin-nagant rifle, Spanish Civil War provenance. It was found and I wanted to restore it, as the butt was rotten. I couldn't dismount it because the screws were stuck. I had to eat the heads of the screws off by drilling through them. Then I could dismount the rifle and remove the main part of the stem.

I went to a shop to buy some new, to replace...and the guy said:

- This thread doesn't exist!
- For sure it does (I said), if you have the screw in your hand!!

So I found out Russians used a different measuring system. What did I do? I welded a piece of iron and shaped it back to a usable screw

https://en.wikipedia.org/wiki/Obsole...of_measurement

BTW, Tim, did you see the thread about my 3cm MK101/3 rounds? Screwing involved there.:

http://dev.wehrmacht-awards.com/foru...=610218&page=3

Carles

[timg]

Re Russian Info

Wow, Hi Carles,

Just had a read up on the Russian system you referenced for measures and threads etc...........I thought ours was bad! How are you meant to convert that I have no idea..

Little surprise to see folks asking if anyone has any spare bolts etc for the Russian kit!!!!!!!

Remind me to avoid.

[me6_130]

Interesting thought about terms: Screws and Bolts!!


https://www.accu.co.uk/en/p/131-diff...rews-and-bolts


Carles

[timg]

Hi Carles,

Personally I have never really questioned about it but have worked on the principle that a Bolt, regardless of head type, is parallel sided and is passed through a hole to secure with a nut or is secured into a female socket with parallel side and commensurate thread. Thus providing a secure joint.

A screw however, regardless of head is tapered, with whatever thread it has and is DRIVEN INTO THE MATERIAL IN QUESTION to provide an attachment.

Both of course utilising the principle of the helix.

Keeps it easy! (I think )

Regards