Thread Length Thread Length |
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Height Height |
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Maximum Clamping Force Maximum Clamping Force |
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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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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Handle Style Handle Style |
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| Pistol | Screwdriver |
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Inside Diameter Fixture Clamps
Secure a workpiece from the inside diameter, leaving the outside clear for machining. Machine these clamps to match the precise size and contours of your workpiece ID. Mount the clamp to your fixture with the included screws and place your workpiece over it. Turn the socket head cap screw to expand the clamp.
Top-actuated clamps tighten from the top of the clamp, so workpieces need a through hole.
For technical drawings and 3-D models, click on a part number.
Thread | Drive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For ID Range | Max. Clamp Expansion | Ht. | Flange OD | Max. Clamping Force, lbs. | Size | Lg. | Size | Style | Mounting Fasteners Included | Material | Screw Material | Each | |
Top Actuated | |||||||||||||
| 0.16"-0.29" | 0.005" | 27/64" | 25/32" | 250 | 2-56 | 1/2" | 5/64" | Hex | Yes | Steel | Steel | 0000000 | 000000 |
| 0.28"-0.49" | 0.009" | 55/64" | 1 11/64" | 950 | 8-32 | 1" | 9/64" | Hex | Yes | Steel | Steel | 0000000 | 00000 |
| 0.48"-0.56" | 0.013" | 63/64" | 1 15/64" | 1,900 | 1/4"-20 | 1 1/4" | 3/16" | Hex | Yes | Steel | Steel | 0000000 | 00000 |
| 0.53"-0.79" | 0.014" | 63/64" | 1 15/32" | 2,500 | 5/16"-18 | 1 1/4" | 1/4" | Hex | Yes | Steel | Steel | 0000000 | 00000 |
| 0.71"-1.06" | 0.014" | 1 1/8" | 1 31/32" | 4,500 | 3/8"-16 | 1 1/2" | 5/16" | Hex | Yes | Steel | Steel | 0000000 | 00000 |
| 0.9"-1.39" | 0.014" | 1 1/4" | 2 13/64" | 5,900 | 1/2"-13 | 1 1/2" | 3/8" | Hex | Yes | Steel | Steel | 0000000 | 00000 |
| 1.15"-1.65" | 0.014" | 1 9/16" | 2 47/64" | 10,000 | 5/8"-11 | 1 3/4" | 1/2" | Hex | Yes | Steel | Steel | 0000000 | 00000 |
| 1.15"-2.03" | 0.014" | 1 9/16" | 2 31/32" | 10,000 | 5/8"-11 | 1 3/4" | 1/2" | Hex | Yes | Steel | Steel | 0000000 | 00000 |
| 1.15"-3.06" | 0.014" | 1 51/64" | 4 15/64" | 10,000 | 5/8"-11 | 2" | 1/2" | Hex | Yes | Steel | Steel | 0000000 | 000000 |
Inside Diameter Fixture Clamps for Castings and Rough Parts
These clamps wedge against the workpiece ID to grip cast, unfinished, or uneven parts, leaving the outside clear for machining. Do not use these clamps on smooth or finished ID’s because they will leave a mark. The clamp’s screw tightens from the top of the clamp, so workpieces require a through hole. Thread the clamp into a tapped hole in your fixture and place your workpiece over it. Reach through the hole to turn the screw, expanding the clamp.
For technical drawings and 3-D models, click on a part number.
Thread | Drive | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For ID Range | Max. Clamp Expansion | Body Ht. | Overall Ht. | Max. Clamping Force, lbs. | Size | Pitch, mm | Lg., mm | Size, mm | Style | Mounting Fasteners Included | Material | Screw Material | Each | |
| 0.768"-0.945" | 0.178" | 23/64" | 29/64" | 450 | M4 | 0.7 | 12 | 3 mm | Hex | Yes | Steel | Steel | 0000000 | 000000 |
| 0.925"-1.142" | 0.217" | 33/64" | 43/64" | 1,120 | M6 | 1 | 18 | 5 mm | Hex | Yes | Steel | Steel | 0000000 | 00000 |
| 1.122"-1.417" | 0.295" | 43/64" | 7/8" | 2,000 | M8 | 1.25 | 25 | 6 mm | Hex | Yes | Steel | Steel | 0000000 | 00000 |
Dual-Clamping Fixture Clamps
Set one of these clamps between two workpieces in a fixture and tighten the screw to push the clamp's sides out for a secure hold. The minimal contact leaves more of the workpieces free for machining.
For technical drawings and 3-D models, click on a part number.
Thread | Drive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Max. Clamping Force, lbs. | Size | Lg. | Size | Style | Material | Screw Material | Wedge Material | Each | |
| 5/16" | 1/4" | 17/64" | 200 | 2-56 | 3/8" | 5/64" | Hex | Aluminum | Steel | Steel | 0000000 | 000000 |
| 15/32" | 3/8" | 3/8" | 300 | 4-40 | 1/2" | 3/32" | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
| 5/8" | 1/2" | 37/64" | 500 | 8-32 | 5/8" | 9/64" | Hex | Aluminum | Steel | Steel | 0000000 | 0000 |
| 15/16" | 3/4" | 49/64" | 1,500 | 1/4"-20 | 7/8" | 3/16" | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
| 1 1/4" | 1" | 1 1/64" | 2,000 | 5/16"-18 | 1 1/4" | 1/4" | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
| 1 7/8" | 1 1/2" | 1 33/64" | 3,500 | 1/2"-13 | 2" | 3/8" | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
| 2 1/2" | 2" | 2 1/32" | 6,000 | 5/8"-11 | 2 1/2" | 1/2" | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
Thread | Drive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Max. Clamping Force, lbs. | Size | Lg. | Size | Style | Material | Screw Material | Wedge Material | Pkg. Qty. | Pkg. | |
| 5/16" | 1/4" | 17/64" | 200 | 2-56 | 3/8" | 5/64" | Hex | Aluminum | Steel | Steel | 6 | 0000000 | 000000 |
| 15/32" | 3/8" | 3/8" | 300 | 4-40 | 1/2" | 3/32" | Hex | Aluminum | Steel | Steel | 6 | 0000000 | 00000 |
| 5/8" | 1/2" | 37/64" | 500 | 8-32 | 5/8" | 9/64" | Hex | Aluminum | Steel | Steel | 8 | 0000000 | 00000 |
| 15/16" | 3/4" | 49/64" | 1,500 | 1/4"-20 | 7/8" | 3/16" | Hex | Aluminum | Steel | Steel | 6 | 0000000 | 00000 |
| 1 1/4" | 1" | 1 1/64" | 2,000 | 5/16"-18 | 1 1/4" | 1/4" | Hex | Aluminum | Steel | Steel | 4 | 0000000 | 00000 |
| 1 7/8" | 1 1/2" | 1 33/64" | 3,500 | 1/2"-13 | 2" | 3/8" | Hex | Aluminum | Steel | Steel | 2 | 0000000 | 000000 |
| 2 1/2" | 2" | 2 1/32" | 6,000 | 5/8"-11 | 2 1/2" | 1/2" | Hex | Aluminum | Steel | Steel | 2 | 0000000 | 000000 |
Thread | Drive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Wd., mm | Ht., mm | Max. Clamping Force, lbs. | Size | Pitch, mm | Lg., mm | Size | Style | Material | Screw Material | Wedge Material | Each | |
| 8.1 | 6.4 | 6.9 | 195 | M2 | 0.4 | 10 | 1.5 mm | Hex | Aluminum | Steel | Steel | 0000000 | 000000 |
| 11.9 | 9.5 | 9.7 | 300 | M2.5 | 0.45 | 12 | 2 mm | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
| 15.9 | 12.7 | 14.5 | 500 | M4 | 0.7 | 16 | 3 mm | Hex | Aluminum | Steel | Steel | 0000000 | 0000 |
| 23.8 | 19 | 19 | 1,500 | M6 | 1 | 25 | 5 mm | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
| 31.7 | 25.4 | 25.9 | 2,500 | M8 | 1.25 | 30 | 6 mm | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
Thread | Drive | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Wd., mm | Ht., mm | Max. Clamping Force, lbs. | Size | Pitch, mm | Lg., mm | Size | Style | Material | Screw Material | Wedge Material | Pkg. Qty. | Pkg. | |
| 8.1 | 6.4 | 6.9 | 195 | M2 | 0.4 | 10 | 1.5 mm | Hex | Aluminum | Steel | Steel | 6 | 0000000 | 000000 |
| 11.9 | 9.5 | 9.7 | 300 | M2.5 | 0.45 | 12 | 2 mm | Hex | Aluminum | Steel | Steel | 6 | 0000000 | 00000 |
| 15.9 | 12.7 | 14.5 | 500 | M4 | 0.7 | 16 | 3 mm | Hex | Aluminum | Steel | Steel | 8 | 0000000 | 00000 |
| 23.8 | 19 | 19 | 1,500 | M6 | 1 | 25 | 5 mm | Hex | Aluminum | Steel | Steel | 6 | 0000000 | 00000 |
| 31.7 | 25.4 | 25.9 | 2,500 | M8 | 1.25 | 30 | 6 mm | Hex | Aluminum | Steel | Steel | 4 | 0000000 | 00000 |
Machinable Dual-Clamping Fixture Clamps
Machine these fixture clamps to match the contours of your workpieces for a stronger grip. Place the clamp between the two workpieces in a fixture and tighten the screw to extend the sides of the clamp, creating a secure hold against both workpieces. Minimal contact with the workpiece leaves more of its surface accessible for machining. Each clamp comes with a locking plate to keep the clamp rigid while machining it to fit your application.
For technical drawings and 3-D models, click on a part number.
Thread | Drive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Max. Clamping Force, lbs. | Max. Machinable Wd. | Size | Lg. | Size | Style | Material | Screw Material | Wedge Material | Each | |
| 5/8" | 1 1/8" | 1/2" | 500 | 0.18" | 8-32 | 5/8" | 9/64" | Hex | Aluminum | Steel | Steel | 0000000 | 000000 |
| 15/16" | 1 1/2" | 3/4" | 1,500 | 0.26" | 1/4"-20 | 7/8" | 3/16" | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
| 1 1/4" | 2" | 1" | 2,500 | 0.39" | 5/16"-18 | 1 1/4" | 1/4" | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
| 1 7/8" | 3" | 1 1/2" | 3,500 | 0.62" | 1/2"-13 | 2" | 3/8" | Hex | Aluminum | Steel | Steel | 0000000 | 00000 |
| 2 1/2" | 4" | 2" | 6,000 | 0.8" | 5/8"-11 | 2 1/2" | 1/2" | Hex | Aluminum | Steel | Steel | 0000000 | 000000 |
Machinable Low-Profile Fixture Clamps
Machine these fixture clamps to match the contours of your workpiece for a stronger grip. They install into a slot in your fixture to grip at the bottom of workpiece edges, giving the cutting tool maximum access to the workpiece. Thread the clamp into a tapped hole and give the center screw a half turn for quick clamping.
For technical drawings and 3-D models, click on a part number.
Head | Thread | Drive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Max. Movement | Max. Clamping Force, lbs. | Min. Workpiece Contact | For Slot Dp. | Size | Lg. | Size | Style | Head Material | Screw Material | Each | |
Blunt Edge | ||||||||||||||
| 1" | 1" | 0.7" | 0.05" | 6,000 | 1/4" | 0.45" | 3/8"-16 | 23/32" | 5/16" | Hex | Steel | Steel | 0000000 | 000000 |
| 1 1/2" | 1 1/2" | 1.015" | 0.075" | 12,000 | 3/8" | 0.64" | 1/2"-13 | 25/32" | 3/8" | Hex | Steel | Steel | 0000000 | 00000 |
Head | Thread | Drive | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Max. Movement | Max. Clamping Force, lbs. | Min. Workpiece Contact | For Slot Dp. | Size | Lg. | Size | Style | Head Material | Screw Material | Pkg. Qty. | Pkg. | |
Blunt Edge | |||||||||||||||
| 1" | 1" | 0.7" | 0.05" | 6,000 | 1/4" | 0.45" | 3/8"-16 | 23/32" | 5/16" | Hex | Steel | Steel | 4 | 0000000 | 000000 |
| 1 1/2" | 1 1/2" | 1.015" | 0.075" | 12,000 | 3/8" | 0.64" | 1/2"-13 | 25/32" | 3/8" | Hex | Steel | Steel | 2 | 0000000 | 00000 |
Trigger-Action Bar Clamps/Spreaders
Reverse the arms to use these clamps as spreaders. Press the trigger to slide the clamping arm along the bar. Release the trigger and squeeze the pistol-grip handle to lock the clamp in place.
For technical drawings and 3-D models, click on a part number.
Opening | Spreader Opening | ||||||
|---|---|---|---|---|---|---|---|
| Max. | Min. | Max. | Min. | Reach | Body Material | Each | |
300 lbs. Holding Capacity | |||||||
| 6" | 0" | 12 1/2" | 7 1/2" | 2 1/4" | Steel | 0000000 | 000000 |
| 12" | 0" | 18 1/2" | 7 1/2" | 2 1/4" | Steel | 0000000 | 00000 |
| 18" | 0" | 24 1/2" | 7 1/2" | 2 1/4" | Steel | 00000000 | 00000 |
| 24" | 0" | 30 1/2" | 7 1/2" | 2 1/4" | Steel | 00000000 | 00000 |
| 36" | 0" | 42 1/2" | 7 1/2" | 2 1/4" | Steel | 00000000 | 00000 |
600 lbs. Holding Capacity | |||||||
| 6" | 0" | 14 7/8" | 9 1/4" | 3 5/8" | Steel | 00000000 | 00000 |
| 12" | 0" | 20 1/2" | 9" | 2 3/4" | Steel | 00000000 | 00000 |
| 18" | 0" | 26 1/2" | 9" | 2 3/4" | Steel | 00000000 | 00000 |
| 24" | 0" | 32 1/2" | 9" | 2 3/4" | Steel | 00000000 | 00000 |
| 36" | 0" | 44 1/2" | 9" | 2 3/4" | Steel | 00000000 | 00000 |
| 50" | 0" | 58 1/2" | 9" | 2 3/4" | Steel | 00000000 | 00000 |
Fast-Action Bar Clamps/Spreaders
Each arm slides freely for quick, one-handed positioning. They lock when the screws are tightened onto a workpiece. Reverse the arms to use these clamps as spreaders.
For technical drawings and 3-D models, click on a part number.
Parallel-Jaw Bar Clamps/Spreaders
The large, flat jaws remain parallel when clamping to apply even pressure without denting or marring the workpiece. Reverse the arms to use these clamps as spreaders. Pull the handle to lock or release the clamping arm.
For technical drawings and 3-D models, click on a part number.
Opening | Spreader Opening | |||||||
|---|---|---|---|---|---|---|---|---|
| Max. | Min. | Max. | Min. | Reach | Holding Capacity, lbs. | Body Material | Each | |
| 12" | 0" | 15 5/16" | 10 1/2" | 3 3/4" | 1,000 | Steel | 0000000 | 000000 |
| 18" | 0" | 21 1/2" | 10 1/2" | 3 3/4" | 1,000 | Steel | 0000000 | 00000 |
| 24" | 0" | 28 3/4" | 10 1/2" | 3 3/4" | 1,000 | Steel | 0000000 | 00000 |
| 40" | 0" | 44 1/2" | 10 1/2" | 3 3/4" | 1,000 | Steel | 0000000 | 00000 |
| 50" | 0" | 52 1/2" | 10 1/2" | 3 3/4" | 1,000 | Steel | 0000000 | 00000 |
Trigger-Action Bar Clamps
Press the trigger to slide the clamping arm along the bar. Release the trigger and squeeze the pistol-grip handle to lock the clamp in place.
For technical drawings and 3-D models, click on a part number.
Opening | ||||||
|---|---|---|---|---|---|---|
| Max. | Min. | Reach | Holding Capacity, lbs. | Body Material | Each | |
| 4 1/2" | 0" | 7/8" | 35 | Steel | 0000000 | 00000 |