For Maximum ID For Maximum ID |
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Material Material |
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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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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Handle Style Handle Style |
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| Pistol | Cam |
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| Screwdriver | T |
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.
Side-actuated clamps tighten from the side of the clamp, gripping parts without a through hole in the top.
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 |
| 1.15"-4.06" | 0.02" | 1 51/64" | 5 15/64" | 10,000 | 5/8"-11 | 2" | 1/2" | Hex | Yes | Steel | Steel | 0000000 | 000000 |
| 1.15"-6.89" | 0.02" | 1 51/64" | 5 15/64" | 10,000 | 5/8"-11 | 2" | 1/2" | Hex | Yes | Steel | Steel | 0000000 | 000000 |
| 1.15"-9.85" | 0.04" | 1 51/64" | 6" | 6,000 | 5/8"-11 | 2" | 1/2" | Hex | Yes | Steel | Steel | 0000000 | 000000 |
Side Actuated | |||||||||||||
| 0.71"-1.12" | 0.02" | 1 5/8" | 1 31/32" | 4,000 | 3/8"-16 | 1 1/2" | 1/4" | 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 |
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 |
Expanding Diameter Quick-Release Pins
Flip the handle 180° to expand and contract the shaft for a tight, vibration-resistant fit. Install pins their entire usable length. For a tight fit, your hole should be equal to or slightly larger than the diameter shown. Pins are made of 17-4 PH stainless steel for strength with some corrosion resistance, and passivated for added protection against corrosion and oxidation. They are magnetic. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces.
For technical drawings and 3-D models, click on a part number.
| Usable Lg. | Shoulder Dia. | Breaking Strength, lbs. | Handle Material | Handle Color | Each | |
17-4 PH Stainless Steel | ||||||
|---|---|---|---|---|---|---|
1/4" Dia. | ||||||
| 1" | 1" | 8,000 | Anodized 6061 Aluminum | Black | 000000000 | 0000000 |
| 2" | 1" | 8,000 | Anodized 6061 Aluminum | Black | 000000000 | 000000 |
5/16" Dia. | ||||||
| 1" | 1" | 12,500 | Anodized 6061 Aluminum | Black | 000000000 | 000000 |
| 2" | 1" | 12,500 | Anodized 6061 Aluminum | Black | 000000000 | 000000 |
3/8" Dia. | ||||||
| 1" | 1" | 18,000 | Anodized 6061 Aluminum | Black | 000000000 | 000000 |
| 2" | 1" | 18,000 | Anodized 6061 Aluminum | Black | 000000000 | 000000 |
| 3" | 1" | 18,000 | Anodized 6061 Aluminum | Black | 000000000 | 000000 |
1/2" Dia. | ||||||
| 1" | 1" | 32,000 | Anodized 6061 Aluminum | Black | 000000000 | 000000 |
| 2" | 1" | 32,000 | Anodized 6061 Aluminum | Black | 000000000 | 000000 |
| 3" | 1" | 32,000 | Anodized 6061 Aluminum | Black | 000000000 | 000000 |
Expanding Cam Handles for Unthreaded Holes
Use these handles to keep holes aligned or lift several sheets of thin material. They have a plug that expands to grip the edges inside holes. They are not suitable for permanent installation—use only for temporary mounting. Made of plastic, all of these handles resist oil, grease, and solvents.
For technical drawings and 3-D models, click on a part number.
Handle | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Hole Dia., mm | For Max. Material Thick. | Lg. | Wd. | Center Ht., mm | Clamped Ht., mm | Max. Clamping Force, lbs. | Plug Material | Washer Material | Each | |
Unthreaded Plug | ||||||||||
Black Plastic | ||||||||||
| 12 | 5/32" | 72 mm | 16 mm | 14 | 22 | 11 | Rubber | Plastic | 0000000 | 000000 |
| 14 | 5/32" | 72 mm | 16 mm | 14 | 22 | 13 | Rubber | Plastic | 0000000 | 00000 |
| 16 | 1/4" | 100 mm | 24 mm | 16 | 29 | 13 | Rubber | Plastic | 0000000 | 00000 |
| 18 | 1/4" | 100 mm | 24 mm | 16 | 29 | 22 | Rubber | Plastic | 0000000 | 00000 |
| 20 | 1/4" | 100 mm | 24 mm | 16 | 29 | 22 | Rubber | Plastic | 0000000 | 00000 |