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KNHMS Series
Unit of Measure

Stud Type

N/A Heavy Duty Metric

Material

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

Finish Description

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

Nut End Thread Size

N/A M 4 x 0.7-4h

Nut End Thread Length ±0.75

N/A 10.50

Drill Option

N/A None

Stud End Thread Size

N/A M 8 x 1.25-4h

Stud End Shear Engagement (mm²) (Ref)

N/A 104.9

L ± 0.75

N/A 8.000

Tap Drill Diameter

N/A 6.875 - 7.000

C Sink Diameter +.25/-.000

N/A 8.25

Tap Size

N/A M 8 x 1.25-5h

Minimum Depth, Full Thread

N/A 9.5

Install Tool P/N

N/A THMS 4

Max NL Length Utilizing Hand Tool

N/A 36

Removal Drill Depth ± 0.25

N/A 4.00

Notes

N/A Substitute the Nut End Length (NL), in millimeter increments, for the parentheses in the part number. For example, KNHMS4x0.7MX-30-SZ indicates a stud with a nut end length (NL) of 30 millimeters.

Removal Drill Size

N/A 5.5000