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EZ-Fix
PRESS INSERTS FOR PLASTICS
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For Corded or Drilled
Holes in Plastics
This diamond knurled insert
was designed to replace molded-in inserts and threads in
plastic castings. Installed "cold", press inserts
sharply reduce the cost of moldings. The number of
"shots" per hour is multiplied, reject waste
caused by misaligned and faulty inserts is cut and no
retapping to clean threads is necessary. In addition to
providing clean threads, press inserts also provide
screw-locking action unattainable in molded-in inserts.
Along with self-locking feature, you also have an insert
that is not critical to hole depth and does not require any
secondary operation to secure the fastener in the hole.
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Add suffix for material callout:
BR=Brass, CR=303 Stainless, AL=Aluminum
*These hole sizes are based on average materials and torque
requirements. HOLE SIZES VARY WITH THE MATERIAL USED AND SCREW
DIMENSIONS MAY VARY WITH DIFFERENT STANDARDS. THESE VARIABLES MAY
AFFECT YOUR NEEDS. We suggest that before ordering you test
samples which we will be glad to supply on request.
**these sizes available in brass only.
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*Bolt Broke
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All tests
run with bolt thread on sufficient length to insure full thread
engagement of insert.
Torque-out was determined using a torque wrench on a
bolt in conjunction with a bushing. The bushing's maximum outside
diameter was in all cases less than the insert outside diameter,
thus only pure torque was recorded, not clamp-up. torque-out was
recorded at the point the insert rotated relative to the parent
material.
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Tensile (pull-out) was determined using a 20,000 lb.
Baldwin Southwark tensile machine. Load was applied until the first
indication of insert movement was noted; at this point the pull-out
value was recorded.
NOTE: the minimum distance that an insert can be
installed relative to the edge of a material is dependant upon the characteristics
and type of parent material involved. Most materials will require
one (1) times the insert O.D. for edge distance, as measured from
the center of the installation hole. However, this can vary with
material.
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