Palnut® Capped
Washer - Self-Threaders
Non-Threaded Applications
Palnut self-threading nuts and
Pushnut®
fasteners are respectively turned on and pushed on non-threaded
projections, or "studs". These fasteners eliminate the cost
of cutting threads and the problems of cross-threading. They
permit simpler, more economical and ultimately better designs.
With these fasteners, there is no thread to find and no binding
from dirt or damaged threads. Because of their prevailing torque,
the fasteners provide excellent vibration resistance.
Stud materials, which must be appreciably softer than that of
the fasteners, include die cast zinc,aluminum, molded plastics,
steel and brass.
The Dimensions of the following parts are envelope dimensions
only. For complete design information, please request a blueprint
from your Tinnerman Palnut representative or the Tinnerman Palnut
Engineering Department.
Note:
Parts SP330012 and SP30016 are only for use on tough plastic
such as ABS or polypropylene for
which 45-50 in. lbs. torque develops approximate 100 lb. tension.
*At the tooth-engagement point when the fastener is seated,
stud tolerance is + or - .003".
