Countersunk Head with Knurls
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Thread

Grip Range

L D

Hole Size

B S

M4

2.0-3.5 11.5 5.9 6.0 9.0 1.5

M5

2.0-4.0 13.5 6.9 7.0 10.0 1.5

M6

2.0-4.5 16.0 8.9 9.0 12.0 1.5

M8

2.0-4.5 19.0 10.9 11.0 14.0 1.5

M10

2.0-4.5 21.0 11.9 12.0 15.0 1.5