stereoplug holder screw, nut - 100%

(s.a. http://www.thingiverse.com/thing:36863)

trying to create a stereoplug holder for panel material

• based on a (modified) screw downloaded at grabcad
• combined with a (modified) bayonet-lock (sketchup's 3d warehouse)

.stl file
(1000% of regular size - in case the printer doesn't accept "cm" values)
Measurements: 62.9 x 75.4 x 8.5 mm, 
Volume: 7.1 cm3

3 versions
A - Screw: scaled m8x1 outer thread, inner m8x1 thread - Nut: scaled m8x1 thread
B - Screw: bayonet outer thread, inner m8x1 thread - Nut: bayonet outer thread
C - Screw: bayonet outer thread, inner m8x1 thread & negative of m8x1 Nut - Nut: bayonet outer thread