Item # LKA-M2.5-1, PEMFLEX® Self-locking, Self-clinching Fasteners - Types LK, LKA, LKS

PEM® PEMFLEX® self-locking, self-clinching fasteners retain their repeated use and effective prevailing locking torque.

Shoulder provides increased performance.
Flexing action permits repeated use and effective locking torque.
Flange provides positive stop during installation.

The thread locking performance of Types LK, LKA, and LKS PEMHEX self-clinching fasteners (with MD finish) is equivalent to applicable NASM25027 specifications. The self-clinching feature is the same tried and proven designmore

Unit of Measure

Specifications

Thread Size x Pitch	N/A M2.5 x 0.45
A (Shank) Max.	N/A 0.97 mm
Min. Sheet Thickness¹	N/A 1.0 mm
Hole Size in Sheet + 0.08	N/A 4.37 mm
C Max.	N/A 4.35 mm
D Max.	N/A 4.45 mm
E Nom.	N/A 6.35 mm
T ± 0.25	N/A 3.43 mm
Min. Dist. Hole C/L to Edge	N/A 3.9 mm
For Use in Sheet Hardness²	N/A HRB 50 / HB 82 or less
Thread Specification	N/A Internal, ANSI/ASME B1.13M, 6H
Fastener Material	N/A 7075-T6 Aluminum
Standard Finish	N/A Plain
Anvil Dia.	N/A 13.00 mm
Anvil Depth	N/A 5.50 mm
Breaker Corner	N/A 0.13 mm
Punch Dia.	N/A 13.00 mm
CAD Supplier	N/A PennEngineering® (PEM®)

¹ For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.
² HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.

Specifications

Thread Size x Pitch

A (Shank) Max.

Hole Size in Sheet + 0.08

C Max.

D Max.

E Nom.

T ± 0.25

Min. Dist. Hole C/L to Edge

Thread Specification

Fastener Material

Standard Finish

Anvil Dia.

Anvil Depth

Breaker Corner

Punch Dia.

CAD Supplier