PennEngineering
PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone: 215-766-8853
Toll-Free Phone: 1-800-237-4736 (U.S. only)
Email: info@pemnet.com
Website: www.pemnet.com
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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

Specifications

Thread Size

 N/A .250-28 (1/4-28)

Type

 N/A IUA
Thread Code1 N/A 0428

Length Code

 N/A 1

A ± .005

 N/A .300 in SI_IUB_dimension-518.jpg

E ± .005

 N/A .375 in

C ± .005

 N/A .354 in

Min. Hole Depth

 N/A .340 in

D ± .002

 N/A .349 in

F ± .002

 N/A .363 in

R Ref. Taper Length

 N/A .100 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.