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Miniature Keenserts are for use in electronic and aerospace applications where size and strength are critical.  These inserts may be installed in sheet material as thin as 1/16" providing protrusion of insert is not objectional.  Their pull-out strength exceeds the tensile strength of most Military Standard screws. 

KNC, KNCC, KNCA Series
Unit of Measure

Insert Type

Miniature Inserts

Material

Chrome Moly Steel (160 KSI AISI 4140)

Finish

Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 (.0003 minimum)

Lube Description

Dry Film Lubricant per AS5272, Type 1

Internal Thread Lock

Yes

Internal Thread Size

0.1640-32 UNJC-3B

External Thread Size

0.2500-28 UNF-2A

Modified Minor Diameter

Yes

Shear Engagement Area (in²) Ref.

0.0669

L ±.010

0.220

T ±.010

0.175

Tap Drill Diameter

0.231/0.227

C'Sink Diameter
+.010
-.000

0.255

Thread Tap Size

0.2500-28 UNF-2B*

Thread Tap Depth Min

0.210

Installation Tool Part Number

TKNC 08

Removal Drill Size

#8 (0.199)

Drill Depth ±.010

0.1250