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KNNMS Series
Unit of Measure

Stud Type

Lightweight Metric

Material

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

Finish Description

Cadmium Plate per QQ-P-416, Type I, Class 3

Nut End Thread Size

M 8 x 1.25-4h

Nut End Thread Length ±0.75

13.50

Drill Option

Drilled Hole in Nut End

D ± 0.25

4.000

Nut End Drill Hole Diameter ± 0.25

2.00

Stud End Thread Size

M 12 x 1.25-4h

Shear Engagement Area (mm²) Ref.

266.7

L ± 0.75

12.000

Tap Drill Diameter

10.775 - 10.900

C´ Sink Diameter +0.25 -0.00

12.25

Thread Tap Size

M 12 x 1.25-5h

Minimum Full Thread Tap Depth ± 0.25

13.50

Tool Part Number

TNMS 8

Maximum "NL" Length Utilizing Hand Tool

63

Removal Drill Depth ± 0.25

4.75

Notes

Substitute the Nut End Length (NL), in millimeter increments, for the parentheses in the part number. For example, KNNMS8x1.25MX-40D indicates a stud with a nut end length (NL) of 40 millimeters.

Removal Drill Size

9.5000