author: 'ben lipkowitz'
license: 'GPL2+'
urls: 
- 'http://heybryan.org/mediawiki/index.php/Skdb'
- 'http://fennetic.net/git/gitweb.cgi?p=skdb.git;a=blob_plain;f=screw.yaml'
- 'git://fennetic.net/git/skdb.git/'

parts:
-   !screw
    grade: '3'
    length: 1in
    thread: !thread
        diameter: 1/4*in
        form: UN 
        pitch: 20rev/in