Clamping Shanks | McMaster-Carr

Filter by

System of Measurement

Shank Diameter

For Clamp Shank Diameter

For Fixture Plate Thickness

Material

Holding Capacity

Diameter

Component

Thread Size

Length

Mount Type

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

REACH

Compliant

RoHS

Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Finish

Head Diameter

Bolt Circle Diameter

Mounting Fastener Thread Size

8-32

10-32

1/4"-28

Mounting Hole Diameter

Head Thickness

For Minimum Base Plate Thickness

Shank Length

Hex Key Size

33 Products

Ball-Lock Quick-Change Fixture Clamps

Build these components into fixture plates, machine subplates, and tombstones for quick changes. The system clamps and locates at the same time for accurate positioning with repeatability of ±0.0005". Components are compatible with Jergens Ball-Lock, Carr-Lane Carr Lock, and Kurt PinLock quick change systems.

For accurate positioning, at least two sets of clamps, liners, and receivers are required. Install the receivers in the base plate and the liners in the fixture plate. Then line up the two plates, insert the clamps, and tighten their screws to secure the fixture in place. If more holding capacity is needed, use additional clamps and receivers but omit liners to prevent the clamp from getting stuck in the fixture plate.

Clamps

	Shank		Head
For Fixture Plate Thk.	Dia., mm	Lg.	Dia.	Thk.	Hex Key Size	For Fixture Plate Thk. Tolerance	Holding Cap., lb.	Material	Includes		Each
1/2"	13	1.08"	7/8"	1/4"	3/32"	-0.005" to 0.005"	625	Black-Oxide Steel	Hex Key Set Screw	1349N41	0000000
1/2"	16	1.15"	1 1/2"	5/16"	1/8"	-0.005" to 0.005"	800	Black-Oxide Steel	Hex Key Set Screw	1349N11	000000
3/4"	13	1.33"	7/8"	1/4"	3/32"	-0.005" to 0.005"	625	Black-Oxide Steel	Hex Key Set Screw	1349N42	000000
3/4"	16	1.40"	1 1/2"	5/16"	1/8"	-0.005" to 0.005"	800	Black-Oxide Steel	Hex Key Set Screw	1349N43	000000
3/4"	20	1.53"	1 3/4"	3/8"	1/8"	-0.005" to 0.005"	2,250	Black-Oxide Steel	Hex Key Set Screw	1349N12	000000
3/4"	25	1.70"	2"	3/8"	5/32"	-0.005" to 0.005"	5,440	Black-Oxide Steel	Hex Key Set Screw	1349N44	000000
1"	20	1.78"	1 3/4"	3/8"	1/8"	-0.005" to 0.005"	2,250	Black-Oxide Steel	Hex Key Set Screw	1349N45	000000
1"	25	1.95"	2"	3/8"	5/32"	-0.005" to 0.005"	5,400	Black-Oxide Steel	Hex Key Set Screw	1349N13	000000

Hole Liners

For Fixture Plate Thk.	For Clamp Shank Dia., mm	OD	OD Tolerance	For Fixture Plate Thk. Tolerance	Material		Each
1/2"	13	0.7518"	-0.0004" to 0"	-0.005" to 0.005"	Black-Oxide Steel	1349N54	000000
1/2"	16	1.0018"	-0.0004" to 0"	-0.005" to 0.005"	Black-Oxide Steel	1349N33	00000
3/4"	13	0.7518"	-0.0004" to 0"	-0.005" to 0.005"	Black-Oxide Steel	1349N55	00000
3/4"	16	1.0018"	-0.0004" to 0"	-0.005" to 0.005"	Black-Oxide Steel	1349N56	00000
3/4"	20	1.3772"	-0.0004" to 0"	-0.005" to 0.005"	Black-Oxide Steel	1349N34	00000
3/4"	25	1.3772"	-0.0004" to 0"	-0.005" to 0.005"	Black-Oxide Steel	1349N57	00000
1"	20	1.3772"	-0.0004" to 0"	-0.005" to 0.005"	Black-Oxide Steel	1349N58	00000
1"	25	1.3772"	-0.0004" to 0"	-0.005" to 0.005"	Black-Oxide Steel	1349N35	00000

Receiver Plugs

Push receiver plugs into unused receivers to prevent chips and coolant from accumulating during machining. When installed, plugs sit flush with the surface of the fixture plate. To remove, thread a screw into the tapped hole in the center and pull up.

For Clamp Shank Dia., mm	Lg., mm	Thread Size	Material
13	8	M4 × 0.7 mm	Aluminum	1349N72
16	8	M4 × 0.7 mm	Aluminum	1349N73
20	8	M4 × 0.7 mm	Aluminum	1349N74
25	10	M4 × 0.7 mm	Aluminum	1349N75

Receiver Bushings

For Min. Base Plate Thk.	For Clamp Shank Dia., mm	OD	Bolt Circle Dia.	OD Tolerance	Material	No. of Mounting Holes	Mounting Fasteners Included		Each
3/4"	13	1.3750"	0.984"	-0.0004" to 0"	Black-Oxide Steel	3	Yes	1349N67	000000
3/4"	16	1.4370"	1.125"	-0.0004" to 0"	Black-Oxide Steel	3	Yes	1349N26	00000
1"	20	1.6873"	1.362"	-0.0004" to 0"	Black-Oxide Steel	3	Yes	1349N27	00000
1 1/4"	25	2.0623"	1.644"	-0.0004" to 0"	Black-Oxide Steel	3	Yes	1349N28	00000

Quarter-Turn Quick-Change Fixture Clamps

Install these clamps into fixture plates, machine subplates, and tombstones to quickly swap components in or out of your machining setup. They lock or unlock with the turn of a knob. Since they locate while they clamp, you can accurately position components with repeatability of ±0.1".

For accurate positioning, use at least two sets of clamps and cam receptacles. Install receptacles into a base plate and clamps into a fixture plate. Line up the two plates, insert the clamps into the receptacles, then turn the knobs to secure your fixture in place. If you need more holding capacity, use additional clamps and receptacles.

Clamps

For Fixture Plate Thk.		Shank			Head
Min.	Max.	Dia., mm	Lg.	Material	Dia.	Thk.	Material	Knob Material	Holding Cap., lb.		Each



	1/8"	3/8"	5	0.61"	Stainless Steel	1"	1/4"	Stainless Steel	Nylon	10	9952N121	000000


	1/8"	1/2"	8	0.67"	Stainless Steel	1 3/8"	7/16"	Stainless Steel	Nylon	20	9952N126	00000
	1/2"	3/4"	8	0.91"	Stainless Steel	1 3/8"	7/16"	Stainless Steel	Nylon	20	9952N127	00000

Cam Receptacles


Fastener Mount	Thread In

Fastener Mount—Fastener-mount receptacles have three recessed holes on the face so you can secure them to your base plate with the included screws.

Thread In—Thread-in receptacles have a threaded body for installation in a tapped hole. You hold them in place with the included nut, so they’re good for thin base plates.

	For Fixture Plate Thk.
	Min.	Max.	For Clamp Shank Dia., mm	Dia.	Thk.	Thread Size	Material	Mounting Fasteners Included		Each
Fastener Mount



		3/8"	Not Rated	5	1"	3/8"	—	Nickel-Plated Steel	Yes	9952N122	000000


		1/2"	Not Rated	8	1 1/4"	7/16"	—	Nickel-Plated Steel	Yes	9952N124	00000


		Thread In



				1/4"	3/8"	5	1"	5/8"	M14 × 1.5 mm	Nickel-Plated Steel	—	9952N123	00000


				1/4"	1/2"	8	1 1/4"	11/16"	M20 × 1.5 mm	Nickel-Plated Steel	—	9952N125	00000

Spacers

Use spacers for fixture plates that are less than _1/4" thick.

For Fixture Plate Thk.
Min.	Max.	For Clamp Shank Dia., mm	Dia.	Thk.	Material	Mounting Fasteners Included		Each



	1/8"	1/4"	5	1"	1/8"	Stainless Steel	Yes	9952N128	000000


	1/8"	1/4"	8	1 3/8"	1/8"	Stainless Steel	Yes	9952N129	00000