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Headless Carr Lock® Clamps

Jig & Fixture Bases

Primary Inch 
QUANTITY PART NO. A
SHANK
DIA
NOMINAL
A
SHANK
DIA
ACTUAL
B C D
THREAD
E
HEX
MAX
SCREW
TORQUE
(ft-lbs)
MAX
HOLD-
DOWN
FORCE
(lbs)
CL-13-HCLC-1 13mm .5116/.5111 .38 .58 3/8-24 3/32 1 750
CL-16-HCLC-1 16mm .6297/.6292 .50 .65 1/2-20 1/8 2 1200
CL-20-HCLC-1 20mm .7872/.7867 .75 .78 3/4-16 1/8 3 3000
Secondary Inch 
QUANTITY PART NO. A
SHANK
DIA
NOMINAL
A
SHANK
DIA
ACTUAL
B C D
THREAD
E
HEX
MAX
SCREW
TORQUE
(ft-lbs)
MAX
HOLD-
DOWN
FORCE
(lbs)
CL-13-HCLC-2 13mm .4960/.4940 .38 .58 3/8-24 3/32 1 750
CL-16-HCLC-2 16mm .6140/.6120 .50 .65 1/2-20 1/8 2 1200
CL-20-HCLC-2 20mm .7720/.7700 .75 .78 3/4-16 1/8 3 3000
Primary Metric
QUANTITY PART NO. A
SHANK
DIA
NOMINAL
(mm)
A
SHANK
DIA
ACTUAL
(mm)
B
(mm)
C
(mm)
D
THREAD
E
HEX
(mm)
MAX
SCREW
TORQUE
(Nm)
MAX
HOLD-
DOWN
FORCE
(kN)
CLM-13-HCLC-1 13 12.995 / 12.982 9.65 14.73 M10 X 1.5 2.5 1.4 3.3
CLM-16-HCLC-1 16 15.995 / 15.982 12.70 16.51 M12 X 1.75 3 2.7 5.3
CLM-20-HCLC-1 20 19.995/19.982 19.05 19.81 M18 X 2.5 3 4.1 13
Secondary Metric
QUANTITY PART NO. A
SHANK
DIA
NOMINAL
(mm)
A
SHANK
DIA
ACTUAL
(mm)
B
(mm)
C
(mm)
D
THREAD
E
HEX
(mm)
MAX
SCREW
TORQUE
(Nm)
MAX
HOLD-
DOWN
FORCE
(kN)
CLM-13-HCLC-2 13 12.598 / 12.548 9.65 14.73 M10 X 1.5 2.5 1.4 3.3
CLM-16-HCLC-2 16 15.596 / 15.445 12.70 16.51 M12 X 1.75 3 2.7 5.3
CLM-20-HCLC-2 20 19.609 / 19.558 19.05 19.81 M18 X 2.5 3 4.1 13
Replacement Part Kit (Inch)

Replacement Part Kit includes screw, center ball, locking balls, and O-ring.

QUANTITY PART NO. FOR
CLAMP
A
SHANK
DIA
CL-13-HCLPK CL-13-HCLC-1
CL-13-HCLC-2
13mm
CL-16-HCLPK CL-16-HCLC-1
CL-16-HCLC-2
16mm
CL-20-HCLPK CL-20-HCLC-1
CL-20-HCLC-2
20mm
Replacement Part Kit (Metric)

Replacement Part Kit includes screw, center ball, locking balls, and O-ring.

QUANTITY PART NO. FOR
CLAMP
A
SHANK
DIA
CLM-13-HCLPK CLM-13-HCLC-1
CLM-13-HCLC-2
13mm
CLM-16-HCLPK CLM-16-HCLC-1
CLM-16-HCLC-2
16mm
CLM-20-HCLPK CLM-20-HCLC-1
CLM-20-HCLC-2
20mm

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