Item # IUC-0428-2, Tapered, thru threaded inserts – Types IUA, IUB, IUC

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Designed for use in tapered holes.
Tapered mounting hole allows for rapid and accurate alignment prior to installation.
Aluminum inserts ideal for light weight designs.
Aluminum and stainless steel inserts offer lead-free alternative.

Unit of Measure

Thread Size	N/A .250-28 (1/4-28)
Type	N/A IUC
Thread Code¹	N/A 0428
Length Code	N/A 2
A ± .005	N/A .500 in
E ± .005	N/A .375 in
C ± .005	N/A .332 in
Min. Hole Depth	N/A .540 in
D ± .002	N/A .321 in
F ± .002	N/A .363 in
R Ref. Taper Length	N/A .300 in
Fastener Material	N/A 300 Series Stainless Steel
Standard Finish	N/A Passivated and/or tested per ASTM A380
CAD Supplier	N/A PennEngineering® (SI®)

¹ Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread.

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