Holding Capacity Holding Capacity |
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Maximum Clamping Clearance Maximum Clamping Clearance |
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Rotation Direction Rotation Direction |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Air-Powered Hold-Down Fixture Clamps

Adjust the air pressure to quickly and consistently clamp and release parts. The arm on these clamps rotates 90° into position over the workpiece and then moves straight down to clamp. Disengage to rotate the arm out of the way and load or unload parts. Also known as swing clamps, they are used with a solid state switch or Reed function switch with M8 male 3-pin connectors. Connect the clamp's ports to a control valve and an air line. Clamps mount with screws.
Clamps with rubber-tipped holding screw are nonmarring. Tip is removable.
For technical drawings and 3-D models, click on a part number.
Body | Holding Screw | Female Air Inlet and Outlet | Mount. Holes | |||||||||||||||
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Max. Clamping Clearance | Vertical Travel During Rotation | Max. Clamping Stroke | Holding Cap., lbs. | Reach | Wd. | Dp. | O'all Ht. | Thread Size | Tip Material | Pipe Size | Thread Size | Thread Type | Mount. Fasteners Included | No. of | Dia. | Material | Each | |
90° Clockwise Rotation | ||||||||||||||||||
4 3/8" | 15/32" | 3/8" | 35 | 1 1/8" | 1 1/4" | 1 1/4" | 4 3/4" | 10-32 | Steel | __ | 10-32 | UNF | No | 6 | 3/16" | Aluminum | 00000000 | 0000000 |
5 1/2" | 3/4" | 1/2" | 130 | 2" | 2" | 3" | 6 3/8" | 3/8"-16 | Rubber | 1/8 | __ | NPT | No | 6 | 11/32" | Aluminum | 00000000 | 000000 |
90° Counterclockwise Rotation | ||||||||||||||||||
4 3/8" | 15/32" | 3/8" | 35 | 1 1/8" | 1 1/4" | 1 1/4" | 4 3/4" | 10-32 | Steel | __ | 10-32 | UNF | No | 6 | 3/16" | Aluminum | 00000000 | 000000 |
5 1/2" | 3/4" | 1/2" | 130 | 2" | 2" | 3" | 6 3/8" | 3/8"-16 | Rubber | 1/8 | __ | NPT | No | 6 | 11/32" | Aluminum | 00000000 | 000000 |
Threaded Air-Powered Hold-Down Fixture Clamps

Screw these clamps directly into a tapped hole and use air pressure to quickly and consistently clamp and release parts. The arm rotates 90° into position over the workpiece and then moves straight down to clamp. Disengage to rotate the arm out of the way and load or unload parts. Also known as swing clamps, they're used with a solid state switch or Reed function switch with M8 male 3-pin connectors. Connect the clamp's ports to a control valve and an air line. To hold clamps in an untapped hole, use a mounting block (sold separately).
Clamps with rubber-tipped holding screw are nonmarring. Tip is removable.
For technical drawings and 3-D models, click on a part number.
Body | Holding Screw | Female Air Inlet and Outlet | |||||||||||||
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Max. Clamping Clearance | Vertical Travel During Rotation | Max. Clamping Stroke | Holding Cap., lbs. | Reach | Thread Size | Thread Lg. | O'all Ht. | Thread Size | Tip Material | Pipe Size | Thread Size | Thread Type | Material | Each | |
90° Clockwise Rotation | |||||||||||||||
4 3/8" | 15/32" | 3/8" | 35 | 1 1/8" | 1 1/8"-16 | 2 7/8" | 4 3/4" | 10-32 | Steel | __ | 10-32 | UNF | Aluminum | 00000000 | 0000000 |
5 5/16" | 3/4" | 1/2" | 95 | 1 5/8" | 1 3/4"-12 | 3 1/4" | 6 1/8" | 3/8"-16 | Rubber | 1/8 | __ | NPT | Aluminum | 00000000 | 000000 |
90° Counterclockwise Rotation | |||||||||||||||
4 3/8" | 15/32" | 3/8" | 35 | 1 1/8" | 1 1/8"-16 | 2 7/8" | 4 3/4" | 10-32 | Steel | __ | 10-32 | UNF | Aluminum | 00000000 | 000000 |
5 5/16" | 3/4" | 1/2" | 95 | 1 5/8" | 1 3/4"-12 | 3 1/4" | 6 1/8" | 3/8"-16 | Rubber | 1/8 | __ | NPT | Aluminum | 00000000 | 000000 |
Hold-Down Fixture Clamps

Tighten the spring-loaded socket head cap screw on these clamps to hold your workpiece from above. Also known as swing clamps, you can rotate the hook out of the way when the screw is loose. Install these clamps in a drilled hole for maximum rigidity.
Add mounting blocks to rotate the clamp’s hook consistently—these blocks have a stop every 90°. They’re also useful if you don’t have an easy mounting location for the fixture clamp.
For technical drawings and 3-D models, click on a part number.


Clamps | |||||||||||||
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Body | Thread | Drive | Mounting Blocks | ||||||||||
Max. Clamping Clearance | Holding Capacity, lbs. | Reach | Lg. | Dia. | Size | Lg. | Size | Style | Material | Each | Each | ||
7/8" | 4,800 | 11/16" | 1 3/8" | 5/8" | 5/16"-18 | 1 3/4" | 1/4" | Hex | Steel | 0000000 | 000000 | 000000 | 00 |
29/32" | 2,200 | 1" | 1 3/8" | 3/4" | 5/16"-18 | 2" | 1/4" | Hex | Black-Oxide Steel | 0000000 | 00000 | 0000000 | 000000 |
1 17/32" | 2,700 | 2" | 2 1/2" | 1" | 1/2"-13 | 3" | 3/8" | Hex | Black-Oxide Steel | 0000000 | 00000 | 0000000 | 00000 |
1 17/32" | 3,700 | 2" | 2 7/8" | 1 1/4" | 5/8"-11 | 3 1/4" | 1/2" | Hex | Black-Oxide Steel | 0000000 | 000000 | 0000000 | 000000 |
1 5/8" | 6,400 | 1" | 2 1/4" | 7/8" | 3/8"-16 | 3" | 5/16" | Hex | Steel | 0000000 | 00000 | 000000 | 00 |
1 5/8" | 12,000 | 1" | 2 1/4" | 7/8" | 1/2"-13 | 3" | 3/8" | Hex | Steel | 0000000 | 00000 | 000000 | 00 |
1 13/16" | 17,000 | 1 7/16" | 2 3/4" | 1 1/8" | 5/8"-11 | 3 1/2" | 1/2" | Hex | Steel | 0000000 | 00000 | 000000 | 00 |
Revolving Screw Clamps
When loosened, you can spin the body of this clamp around its mounting point for better access to the workpiece. Position over your workpiece and turn the handle to clamp down. Mount the clamp in a threaded hole or on a mounting base (sold separately).
For technical drawings and 3-D models, click on a part number.
Push Toggle Clamps with Rotating Handle
The handle can be rotated 125° for easier access or extra clearance above the clamp. These clamps secure when the plunger is fully extended to hold a workpiece from the side. The plunger is internally threaded to accommodate threaded holding screws and other threaded fixtures (not included).
For technical drawings and 3-D models, click on a part number.


Plunger | When Clamped | ||||||||||
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Holding Capacity, lbs. | Lg. | Ht. | Travel | Dia. | Thread Size | Thread Lg. | O'all Ht. | O'all Lg. | Body Material | Each | |
450 | 1 9/16" | 7/8" | 1 9/16" | 7/16" | 5/16"-18 | 1" | 2 7/16" | 6 3/4" | Steel | 0000000 | 000000 |


Plunger | When Clamped | ||||||||||
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Holding Capacity, lbs. | Lg. | Ht. | Travel | Dia. | Thread Size | Thread Lg. | O'all Ht. | O'all Lg. | Body Material | Each | |
450 | 1 9/16" | 7/8" | 1 9/16" | 7/16" | M8 | 25 mm | 2 7/16" | 6 3/4" | Steel | 0000000 | 000000 |