11
Tightening screws
With multiple screws
Tighten screws that
are diagonally aligned
Tighten
lightly
Tighten
further
①
②
③
④
Tighten the screw in a vertical
position while applying pressure
on the screw head with the
screwdriver.
①Put the screw in vertically
Lightly turn the screw backward before tightening it and check that it goes into
the screw hole cleanly.
②Tighten without applying pressure
Fit the screw in the screw hole and tighten while making sure the screw turns
easily.
*If you tighten the screw while applying too much pressure, the screw hole could
break and prevent the screw from binding properly.
Also, be aware that if the screw becomes hard to turn before it's all the way in,
it may be going in at an angle.
Right
Right
Tighten while
applying pressure
If you strip the screw head, remove the screw without applying too much force and
then use a new screw.
*Do not use damaged screws.
If the screw becomes hard to tighten, unscrew it a few revolutions and then tighten
again carefully."
With this kit, use a #0 screwdriver for M2 screws and #1 screwdriver for M2.6 and larger screws.
“M"refers to millimeter-scale screw thread. Matching metal nuts can be used.
(Example or tightening order)
Always use a screwdriver that is right for the screw head.
■
Removing and re-tightening
When using several screws to
secure parts, first tighten each
screw lightly, and then tighten
them further to secure the parts
evenly with equal force.
Further, when using more than
four screws to secure parts avoid
adding uneven pressure to the
parts by alternately tightening
screws that are diagonally
aligned.
Prior to Assembly
Screw Handling
