close
close
KNHB Series
Unit of Measure

Insert Type

N/A Blind End, Heavy Duty

Material

N/A Chrome Moly Steel, Type 4140 per MIL-S-5626 or Type 8740 per AMS 6322, 125 KSI Minimum Tensile Strength

Finish Description

N/A Cadmium Plate per QQ-P-416, Type II, Class 2

Lube Description

N/A Dry Film Lubricant per AS5272, Type 1

Internal Thread Lock

N/A No

Internal Thread Size

N/A 0.2500-20 UNJC-3B

External Thread Size

N/A 0.4375-14 UNC-2A

Modified Minor Diameter

N/A Yes

Shear Engagement Area (in²) Ref.

N/A 0.2842

L ±.010

N/A 0.620

A (Ref.)

N/A 0.360

Internal Thread Depth Min.

N/A 0.37

External Thread Length ±.015

N/A 0.37

C'Bore Depth ±.010

N/A 0.070

Tap Drill Diameter

N/A 0.401 / 0.396

C'Sink Diameter (+0.010/-0.000)

N/A 0.447

Thread Tap Size

N/A 0.4375-14 UNC-2B

Thread Tap Min Depth

N/A 0.43

Tool Part Number

N/A THD 420L

Removal Drill Depth ±.010

N/A 0.1875

Removal Drill Size

N/A 0.3437