Saturday, August 19, 2017

Types of Screws

Funk & Wagnalls New Practical Standard Dictionary.  Britannica World Language Edition.  1946, 1957.

Since this 1957 edition, the term "skein screw" has fallen out of usage.  I don't know what exactly it was designed for, other than being a very coarse-threaded lag bolt.  Interesting also that this diagram included a "saw screw", used to hold the wooden handles on hand saws.  Another largely vanished piece of hardware.

No comments: