TFA microPEM® FLEXTACK FASTENERS On PennEngineering

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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:

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Part #	Top Sheet Thickness	Base Panel Min. Sheet Thickness	Top Sheet Hole Size ± 0.05mm/± .002in	Base Panel Hole Size -0.05mm/ -.002in	A ± 0.025mm/±.001in	Min. Dist. Hole C/L to Edge	CAD

TFA-10-025	N/A 0.18 to 0.28 mm.007 to .011 in	N/A 0.89 mm.035 in	N/A 1.47 mm.058 in	N/A 1.02 mm.040 in	N/A 0.67 mm.026 in	N/A 1 mm.039 in	N/A
TFA-10-035	N/A 0.28 to 0.38 mm.011 to .015 in	N/A 0.89 mm.035 in	N/A 1.47 mm.058 in	N/A 1.02 mm.040 in	N/A 0.77 mm.030 in	N/A 1 mm.039 in	N/A
TFA-10-045	N/A 0.38 to 0.48 mm.015 to .019 in	N/A 0.89 mm.035 in	N/A 1.47 mm.058 in	N/A 1.02 mm.040 in	N/A 0.87 mm.034 in	N/A 1 mm.039 in	N/A
TFA-10-055	N/A 0.48 to 0.58 mm.019 to .023 in	N/A 0.89 mm.035 in	N/A 1.47 mm.058 in	N/A 1.02 mm.040 in	N/A 0.97 mm0.38 in	N/A 1 mm.039 in	N/A

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