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The Bellville washer shaped head of the microPEM® FlexTack™ fastener is designed to increase vertical installation tolerance in designs.

  • Alternative to using micro-screws, eliminating the need to tap or use threaded inserts.
  • Installation time to simply press the part in (1.5 seconds) is less than the time to thread a screw in equals less total installed cost.
  • The Belleville-shaped head allows for stack-up tolerance relief in a design.
  • Eliminates the following:

  • - Cost of screw, patch to
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Unit of Measure

Specifications

Fastener Material

Aluminum

Base Panel Hole Size Code

10

Top Sheet Thickness Code

035

Top Sheet Thickness

0.28 to 0.38 mm.011 to .015 in
Base Panel Min. Sheet Thickness1 0.89 mm.035 in

Top Sheet Hole Size ± 0.05mm/± .002in

1.47 mm.058 in

Base Panel Hole Size -0.05mm/ -.002in

1.02 mm.040 in

A ± 0.025mm/±.001in

0.77 mm.030 in TFA-microPEM-FLEXTACK-FASTENERS_Dimensions.JPG

B ± 0.075mm/±.003in

1.26 mm.050 in

C Max.

0.89 mm.035 in

H ± 0.10mm/±.004in

2.91 mm.115 in

P ± 0.05mm/±.002in

1.21 mm.048 in

T ± 0.10mm/±.004in

0.3 mm.012 in

Min. Dist. Hole C/L to Edge

1 mm.039 in

Standard Finish

Plain

For Use in Sheet Hardness

HRB 45 or Less (Hardness Rockwell “B” Scale)
HB 84 or Less (Hardness Brinell)

CAD Supplier

PennEngineering® (PEM®)
  • 1 0.89 mm / .035” for blind holes and 0.5 mm / .020” for through holes.