dou.45 KM Screw Study
- Thread starter Aaron
- Start date
A man after my own heart, I probably did this study myself 20 years ago. It’s hard because it’s so easy to replace them with incorrect screws. But, the majority of early dot/swp rifles use the top ones and then convert to screws with no spammer hole. Of course the majority of dou have the second type and by the end of C block seem to lose spammer holes, but mixed in are dou and dot types. For d and e block dou, well, since I’ve been shopping I’ve seen maybe 2 matching dou “d” block rifles, and only 1 matching dou “e” block, and f block are all Russian capture so far which means the sampling size for observations are nil at higher ranges.
As to depth of the cut, just cut it till it looks similar, I dint think any are exactly the same. They appear to be vz24 disc screws modified for bands. I have a box of hardware store screws that are really close if you need some.
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As to depth of the cut, just cut it till it looks similar, I dint think any are exactly the same. They appear to be vz24 disc screws modified for bands. I have a box of hardware store screws that are really close if you need some.
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Aaron
Senior Member
Glad to hear you like it, means a lot coming from one of the authors! Thank you for the offer on the screws but I got a batch to modify.
If anyone else is interested, Numrich has two types of screws listed on their site but they are both the same kind I think, one is listed as spanner screws for the vz24, for $3.50 a pop, or there is the spanner wood screw ten pack for $4, which have the same dimensions as the disk screw i believe. I got 2 types, 7 of which had 5 revolutions and are pointed and look like the ones in the book, and 3 had coarser threads and a flat bottom. I think its worth running the gauntlet on the 10 pack because you get way more screws for the cost.
If anyone else is interested, Numrich has two types of screws listed on their site but they are both the same kind I think, one is listed as spanner screws for the vz24, for $3.50 a pop, or there is the spanner wood screw ten pack for $4, which have the same dimensions as the disk screw i believe. I got 2 types, 7 of which had 5 revolutions and are pointed and look like the ones in the book, and 3 had coarser threads and a flat bottom. I think its worth running the gauntlet on the 10 pack because you get way more screws for the cost.
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I think there are three distinct screws used on these, and Mike I'll defer to you since you're the expert (one of the few folks who have handled anything past C block), but I think you suggest as much in the book? I had mine out so I pulled some screws for a comparison. Left to right: early spanner type. first plain slotted (DOU 45 7544C). Same screw from SWP 45 51183a. Later, larger plain slotted from SWP 45 69199a. identical screw I pulled off of an RC late DOU stock. Second photo shows the two sets of small and large slotted screws where the different size heads are clearer. Worth noting the smaller ones are blued and larger phosphated. the last shot is of all larger slotted examples. the top one is again from SWP 45 69199a; the other three below are all from late DOU RC stocks (I bought every one I saw when they were $99-129 just for the wood/parts!). all of these are phosphated. Mike these seem the same as on your e block? both small and larger share the same shallow bevel and thick shank that Mike you pointed out in the book, which would be important to maximize contact with a sheet metal band, without risk of pulling through.
