Product 

Number

E-Z LOK 

Part No.

Internal 

Thread

External 

Thread

Length 

(mm)

Metric 

Tap Drill

 Size 

(mm)

Tap Size

Minimum

 Full 

Thread 

Depth 

(mm)

Drive 

Tool 

Catalog 

No.

450-3

450-3

M3-0.5

M6-1.0

6.48

5.1

M6-1.0

7.80

N/A

450-4

450-4

M4-0.7

M8-1.25

7.49

6.9

M8-1.25

8.99

500-1

450-5

450-5

M5-0.8

M8-1.25

7.49

6.9

M8-1.25

8.99

500-1

450-6

450-6

M6-1.0

M10-1.5

10.49

8.6

M10-1.5

11.99

500-3

450-8

450-8

M8-1.25

M12-1.75

12.50

10.4

M12-1.75

14.48

500-4

450-10

450-10

M10-1.5

M16-2.0

16.99

14

M16-2.0

19.00

500-5

450-12

450-12

M12-1.75

M16-2.0

16.99

14

M16-2.0

19.00

500-6

450-16

450-16

M16-2.0

M24-3.0

19.99

21

M24-3.0

23.98

500-8

450-20

450-20

M20-2.5

M36-4.0

30.00

33

M36-4.0

34.98

N/A