crwdns2933423:0crwdne2933423:0

crwdns2933803:03crwdne2933803:0

crwdns2933797:0robertcbaruchcrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 robertcbaruch

crwdns2933769:0crwdne2933769:0
crwdns2933771:0crwdne2933771:0
crwdns2933801:0crwdne2933801:0

crwdns2933807:0crwdne2933807:0

[* black] Put that screw in a bag immediately!
[* black] Label the bag as bag number 1. We'll find the serial number of the calculator shortly.
[* black] Pat yourself on the back. You are now officially organized.
[* icon_note] In the 1920's, screw threads were standardized just as they are today. The one you just unscrewed is a ***#8-36***.
-[* icon_note] I'm not sure the lengths were standardized. If they were, I'm not too impressed with their accuracy. This one is ***0.298*** inches long (the threaded length), which is 19/64 inches. Yeah, they don't make screws in those sizes. If you want a replacement, go with the next length up.
+[* icon_note] I'm not sure the lengths were standardized. If they were, I'm not too impressed with their accuracy. This one is ***0.298*** inches long (the threaded length), which is 19/64 inches. Yeah, they don't make screws in those sizes. If you want a replacement, go with the closest length.
[* icon_note] All the screws are machine screws, using fine threads, and are slotted. Phillips head screws had not yet been invented!
[* icon_note] The heads of the 1920's screws are basically cylinders. Today, the equivalent would be called a pan-head screw.