Having teeth on
the outer perimeter provides the greatest torsional resistance.
Use with pan, round and binder head screws which have a
head style that is large enough to come in contact with
the washer teeth.
When a lockwasher is required
but is cosmetically undesirable, an internal tooth lockwasher
may be the answer. The teeth are hidden under the head of
even the smallest head style - the fillister head.
INTERNAL / EXTERNAL
Use for oversized or irregular
holes when a larger bearing surface is required. Can be
used between two surfaces when an original setting must
be maintained during either rotational or longitudinal adjustments.
Use when a lockwasher is required
under a countersunk flat or oval head screw. They are available
in 82 ° or 100 ° countersink as external tooth style
but also can be obtained as internal tooth on special request.
Use this rigid square or hexagon
shaped washer for very high torque tightening requirements.
These washers are known for their resilience under heavy
loads and sharp points on underside of the perimeter which
prevent shifting. The internal teeth lock onto the bolt
providing extra locking action.
Use this rigid washer when the
locking force needs to be distributed over a large area
as with thin or soft materials. Available with or without
locking teeth under the perimeter.
Use in applications that require
more resilience than a dome allows. The special arched design
distributes locking force over a large area which is preferred
when working with soft or thin materials. Internal teeth
lock onto the bolt. Dished washers are available with or
without locking teeth on the perimeter.
Using a combination of washer
designs, this style provides spring action under loads, controlled
tension, greater control during installation, design flexibility
and cost savings compared to a plain conical washer of equivalent
material and size.
Use in anti-rattle applications
as cushioning devices in light load applications, to eliminate
end play or as a take0up spring when large variations in tolerance
occur. Available in various waves, with each wave providing
additional load bearing capabilities.