E-Z LOK THREAD INSERTS - AUTOMOTIVE DESIGNS

SPARK PLUG SIZES

P/ N

DIMENSIONS

INTERNAL THREAD

EXTERNAL

THREAD

LENGTH

TAP

DRILL

TAP

SIZE

MIN. FULL

THREAD DEPTH

653-50

M10X1/2 reach

9/16-18 

.453

33/64

9/16-18

-

653-51

M12X1/2 reach

5/8-18

.453

37/64

5/8-18

-

653-52

M12X3/4 reach

5/8-18

.703

37/64

5/8-18

-

653-53

M14X1.25

M18-1.5

11.5mm

16.5mm

M18-1.5

-

653-54

M14X3/8 reach

3/4-16

.328

11/16

3/4-16

-

653-55

M14X1/2 reach

3/4-16

.453

11/16

3/4-16

-

653-56

M14X3/4 reach

3/4-16

.703

11/16

3/4-16

-

653-57

M18X1/2 reach

1-14 

.453

59/64

1-12

-

VW CASE SAVERS

653-58 OPEN

M10-1.50

9/16-12

1.000

31/64

9/16-12

1-1/16

653-59 CLOSED

M10-1.50

9/16-12

1.000

31/64

9/16-12

1-1/16

CUMMINS HEAD BOLT

653-60

11/16-16

7/8-14

2.000

13/16

7/8-14

2-3/16