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Lightweight Keenserts are available in a wide choice of sizes, lengths, and materials for virtually any requirement.

KN Series
Unit of Measure

Specifications

Insert Type

Lightweight Inserts

Material

Chrome Moly Steel, Type 4140 per MIL-S-5626 or Type 8740 per AMS 6322, 160 KSI Minimum Tensile Strength

Finish

Silver Plate per AMS 2410

Lubricant

None

Internal Thread Lock

No

Internal Thread Size

0.3750-24 UNJF-3B

External Thread Size

0.5000-13 UNC-2A

Modified Minor Diameter

0.440/0.432

Shear Engagement Area (in²) Ref.

0.4299

C DIA ±.005

0.380

C'Bore Depth ±.010

0.070

L ±.010

0.500

A (Ref.)

0.360

Tap Drill Diameter

0.457/0.452

C'Sink Diameter
+.010
-.000

0.510

Thread Tap Size

0.5000-13 UNC-2B

Thread Tap Depth Min

0.560

Installation Tool Part Number

TD 624L

Removal Drill Depth ±.010

0.1875

Removal Drill Size

0.406