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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

.086-56 (#2-56)

Type

IUA
Thread Code1 256

Length Code

1

A ± .005

.115 in
SI_IUB_dimension-518.jpg

E ± .005

.141 in

C ± .005

.123 in

Min. Hole Depth

.155 in

D ± .002

.118 in

F ± .002

.123 in

R Ref. Taper Length

.036 in

Fastener Material

Aluminum

Standard Finish

Plain

CAD Supplier

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