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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

A286 CRES per AMS 5737, 140 KSI Minimum Tensile Strength

Finish

Silver Plate per AMS 2410

Lubricant

None

Internal Thread Lock

No

Internal Thread Size

0.3125-24 UNJF-3B

External Thread Size

0.4375-14 UNC-2A

Modified Minor Diameter

0.383/0.375

Shear Engagement Area (in²) Ref.

0.3049

C DIA ±.005

0.316

C'Bore Depth ±.010

0.070

L ±.010

0.437

A (Ref.)

0.340

Tap Drill Diameter

0.401/0.396

C'Sink Diameter
+.010
-.000

0.447

Thread Tap Size

0.4375-14 UNC-2B

Thread Tap Depth Min

0.500

Installation Tool Part Number

TD 524L

Removal Drill Depth ±.010

0.1875

Removal Drill Size

0.344