Double-Acting Ball Lock Pins (Ring Handle)

Ball Lock Pins & Quick-Release Pins

Product Information

Ring Handle

Double-Acting Ball Lock Pins are positive locking until released by either pushing or pulling the center spindle, which is connected to the handle. Pushing on the handle releases the balls and inserts the pin in one motion. Pulling on the handle releases the balls and removes the pin in one motion. Ball Lock Pins are high-strength, quick-release alignment pins with a precision ground shank and positive locking. The ring-handle version shown here is one of three available handle styles. Made in USA.

Available in pin diameters from 3/16 to 1" (5 to 20mm in metric), in stainless steel only. All Double-Acting Ball Lock Pins are made to order, with standard grip lengths for each diameter listed in the tables below. Pins with special grip lengths up to 12” (300mm) and other special features can also be quickly made to order. The Part Configurator link at the top of this page can be used for any Double-Acting Ball Lock Pin, either standard or special.

Technical Information

Double-Acting Ball Lock Pins are positive locking until released by either pushing or pulling the center spindle, which is connected to the handle. Pushing on the handle releases the balls and inserts the pin in one motion. Pulling on the handle releases the balls and removes the pin in one motion.

Optional Drive Out

Double-acting pins are available with a "Drive-out" option, where the center spindle extends slightly beyond the shank end (see M dimension). This allows removing a pin under slight shear load by tapping the end with a hammer (releasing the balls at the same time). Add "-D" to the part number:

CL-4-BPDR-1.50-S-D

Optional 4 Ball

Pins are optionally available with four balls instead of two, for more-distributed ball-pullout force. Add "-4BALL" to the part number:

CL-4-BPDR-1.50-S-4BALL

Optional Cable

Diagram showcasing the application of Double Acting Ball Lock Pins Ring Handle

To order pins with a standard cable assembly attached (Cable Assembly CL-82-KA-12.0 — #2 cable size, 12.0" long, with a terminal at the free end for a #10 or M5 attachment screw), add "-C" to the part number:

CL-4-BPDR-1.50-S-C

Material

Steel (Discontinued):

Shank > 4130 steel, heat treated Rc 36-40, zinc or cadmium plated. Spindle > 4130 steel, cadmium plated, or 17-4PH stainless. Head, button, and handle > Carbon steel, zinc or cadmium plated. Spring and ring > 17-7PH/302 stainless, or music wire. Balls > 440C stainless. Note: alternative materials listed here are manufacturing options, not customer options. DFARS and RoHS compliant.

Stainless Steel:

Shank > 17-4PH stainless, heat treated Rc 40 min. Spindle > 17-4PH stainless. Head, button, and handle > 300-series stainless. Spring and ring > 17-7PH/302 stainless. Balls > 440C stainless. Note: alternative materials listed here are manufacturing options, not customer options. DFARS and RoHS compliant.

Click here for detailed material and finish specifications.

Double-Acting Ball Lock Pins (Ring Handle)

Basic Dimensions (Inch)

The Basic Part Number shown here must be completed on the Pricing & Availability screen with a suffix for grip length (2-place decimal inch) followed by a “-S” for standard stainless-steel material. Also add a suffix for any desired option, such an attached cable (-C). For complete part numbers of stock grip lengths in each diameter, see tables at the bottom of this page.

BASIC PART NO.	A DIA NOMINAL	A DIA ACTUAL	B	C	D DIA	E DIA	G	K DIA	L	M
CL-3-BPDR	3/16 (#10)	.1885 / .1870	.219	.385	.19	7/16	1.02	1	1.86	.12
CL-4-BPDR	1/4	.2485 / .2470	.290	.385	.19	7/16	1.02	1	1.86	.12
CL-5-BPDR	5/16	.3110 / .3095	.375	.415	.25	1/2	1.02	1	1.86	.14
CL-6-BPDR	3/8	.3735 / .3720	.438	.485	.25	5/8	1.06	1	1.86	.15
CL-7-BPDR	7/16	.4360 / .4345	.508	.485	.25	5/8	1.06	1	1.86	.16
CL-8-BPDR	1/2	.4985 / .4970	.592	.565	.31	11/16	1.24	1	1.97	.18
CL-9-BPDR	9/16	.5610 / .5595	.666	.635	.31	11/16	1.24	1	1.97	.18
CL-10-BPDR	5/8	.6235 / .6220	.750	.725	.43	13/16	1.44	1-5/16	2.45	.26
CL-12-BPDR	3/4	.7485 / .7470	.886	.765	.43	15/16	1.43	1-5/16	2.44	.29
CL-14-BPDR	7/8	.8735 / .8720	1.044	.925	.56	1-1/8	1.59	1-5/16	2.62	.28
CL-16-BPDR	1	.9985 / .9970	1.217	1.075	.56	1-1/4	1.77	1-5/16	2.79	.30

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General Dimensions (Metric)

The Basic Part Number shown here must be completed on the Pricing & Availability screen with a suffix for grip length (in millimeters) followed by a “-S” for standard stainless-steel material. Also add a suffix for any desired option, such an attached cable (-C).

BASIC PART NO.	A DIA NOMINAL (mm)	A DIA ACTUAL (mm)	B (mm)	C (mm)	D DIA (mm)	E DIA (mm)	G (mm)	K DIA (mm)	L (mm)	M (mm)
CLM-5-BPDR	5	4.96 / 4.92	5.38	9.78	5	11	26	25.5	47	3
CLM-6-BPDR	6	5.96 / 5.92	7.06	9.78	5	11	26	25.5	47	3
CLM-8-BPDR	8	7.96 / 7.92	9.42	10.54	6.5	12.5	26	25.5	47	3.5
CLM-10-BPDR	10	9.96 / 9.92	11.91	12.32	6.5	16	27	25.5	47	4
CLM-12-BPDR	12	11.96 / 11.92	14.40	14.35	8	17.5	31.5	25.5	50	4.5
CLM-16-BPDR	16	15.96 / 15.92	19.00	18.42	11	20.5	36.5	33.5	62	6.5
CLM-20-BPDR	20	19.96 / 19.92	24.08	23.50	14	28.5	40.5	33.5	66.5	7

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Standard Grip Lengths – Stainless Steel (Inch)

To order with optional cable, add "C" suffix to part number on Price & Availability screen.

PART NO.	A DIA NOMINAL	A DIA ACTUAL	GRIP LENGTH	B	C	D DIA	E DIA	G	K DIA	L	M
CL-4-BPDR-1.00-S	1/4	.2485 / .2470	1.00	.290	.385	.19	7/16	1.02	1	1.86	.12
CL-4-BPDR-1.50-S	1/4	.2485 / .2470	1.50	.290	.385	.19	7/16	1.02	1	1.86	.12
CL-4-BPDR-2.00-S	1/4	.2485 / .2470	2.00	.290	.385	.19	7/16	1.02	1	1.86	.12
CL-6-BPDR-2.00-S	3/8	.3735 / .3720	2.00	.438	.485	.25	5/8	1.06	1	1.86	.15
CL-6-BPDR-2.50-S	3/8	.3735 / .3720	2.50	.438	.485	.25	5/8	1.06	1	1.86	.15
CL-6-BPDR-3.00-S	3/8	.3735 / .3720	3.00	.438	.485	.25	5/8	1.06	1	1.86	.15
CL-8-BPDR-2.00-S	1/2	.4985 / .4970	2.00	.592	.565	.31	11/16	1.24	1	1.97	.18

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Double-Acting Ball Lock Pins (Ring Handle)

Product Information

Technical Information

Optional Drive Out

Optional 4 Ball

Optional Cable

Material

Double-Acting Ball Lock Pins (Ring Handle)

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