Experts in the development and manufacture of precision fasteners,
components and systems, specializing in thin sheet attachment solutions.

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New self-clinching microPEM® TackPin® (Type T4™)fasteners are ideal for installation into stainless steel and higher strength aluminum alloy sheets. They are for use in compact electronic assemblies enabling sheet-to-sheet attachment, replacing costly screw installation in applications wheredisassembly is not required. TackPin® fasteners eliminate typical screw-relatedissues (including tapping, cross-threading, torque control, and vibration backout)and ultimately promotes quick and easy installation with minimal hardware.TackPin® fasteners can provide a good alternative to welds or adhesives.

Features and Benefits
  • Advantages over micro screws: eliminates costly tapping, cross threading, torque control, vibrationback-out and installation time.
  • Interference fit minimizes hole tolerance issues.
  • Tapered tip assists location.
  • Low-profile head provides space savings.
  • Can be installed automatically.
  • For use in stainless steel and higher strength aluminum alloy sheets..
Unit of Measure

Fastener Material

N/A Hardened 400 Series Stainless Steel

Base Panel Hole Size Code

N/A 10

Top Sheet Thickness Code

N/A 025

Top Sheet Thickness

N/A 0.2 to 0.28 mm.008 to .011 in
Base Panel Min. Sheet Thickness1 N/A 0.89 mm.035 in

Top Sheet Hole Size ± 0.05mm/± .002in

N/A 1.47 mm.058 in

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

N/A 1.02 mm.040 in

A ± 0.025mm/±.001in

N/A 0.406 mm.016 in Type-TA.JPG

B ± 0.075mm/±.003in

N/A 0.610 mm.024 in

C Max.

N/A 0.89 mm.035 in

H ± 0.1mm/±.004in

N/A 2 mm.079 in

P ± 0.05mm/±.002in

N/A 1.3 mm.051 in

T ± 0.1mm/±.004in

N/A 0.2 mm.008 in

Min. Dist. Hole C/L to Edge

N/A 1 mm.039 in

Standard Finish

N/A Passivated and/or tested per ASTM A380

For Use in Sheet Hardness

N/A HRB 88 or Less (Hardness Rockwell “B” Scale)
HB 183 or Less (Hardness Brinell)

CAD Supplier

N/A PennEngineering® (PEM®)
  • 1 0.89 mm/.035 in for blind holes and 0.5 mm/.020 in for thru holes.

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