Howmet Fastening Systems
Howmet Fastening Systems
Phone: Sales +1 800 992 4444
Technical Support +1 310 784 6409
Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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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

Specifications

Insert Type

 N/A Miniature Inserts

Material

 N/A Chrome Moly Steel (160 KSI AISI 4140)

Finish

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

Lube Description

 N/A Dry Film Lubricant per AS5272, Type 1

Internal Thread Lock

 N/A Yes

Internal Thread Size

 N/A 0.0860-56 UNJC-3B

External Thread Size

 N/A 0.1640-32 UNC-3A

Shear Engagement Area (in²) Ref.

 N/A 0.0157

L ±.010

 N/A 0.120

T ±.010

 N/A 0.088

Tap Drill Diameter

 N/A 0.137/0.133

C'Sink Diameter
+.010
-.000

 N/A 0.166

Thread Tap Size

 N/A 0.1640-32 UNC-2B

Thread Tap Depth Min

 N/A 0.140

Installation Tool Part Number

 N/A TKNC 02

Removal Drill Size

 N/A #33 (0.113)

Drill Depth ±.010

 N/A 0.0630