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Online literature contains the most current information available.
  • 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 .164-32 (#8-32)


Thread Code1 N/A 832

Length Code

N/A 2

A ± .005

N/A .312 in SI_IUB_dimension-518.jpg

E ± .005

N/A .250 in

C ± .005

N/A .213 in

Min. Hole Depth

N/A .352 in

D ± .002

N/A .208 in

F ± .002

N/A .234 in

R Ref. Taper Length

N/A .186 in

Fastener Material

N/A Aluminum

Standard Finish

N/A Plain

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.