Fixture Clamps
Hold a workpiece securely from the side with minimal contact, leaving more of the workpiece free for machining. Thread the clamp into a tapped hole and give the center screw a half turn for quick clamping.
Stainless steel clamps are a good choice to avoid corrosion when working with stainless steel workpieces or building a fixture from stainless steel.
For technical drawings and 3-D models, click on a part number.
Head | Thread | Drive | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Max. Movement | Max. Clamping Force, lbs. | Size | Lg. | Size | Style | Head Material | Screw Material | Each | |
| 5/16" | 7/64" | 0.03" | 200 | 8-32 | 11/32" | 5/64" | Hex | Brass | Steel | 00000000 | 00000 |
| 1/2" | 5/32" | 0.04" | 350 | 10-32 | 11/32" | 3/32" | Hex | Brass | Steel | 00000000 | 0000 |
| 5/8" | 3/16" | 0.04" | 800 | 1/4"-20 | 15/32" | 1/8" | Hex | Brass | Steel | 00000000 | 0000 |
| 5/8" | 3/16" | 0.04" | 800 | 1/4"-20 | 15/32" | 1/8" | Hex | Stainless Steel | Stainless Steel | 00000000 | 00000 |
| 13/16" | 3/16" | 0.04" | 800 | 5/16"-18 | 15/32" | 3/16" | Hex | Brass | Steel | 00000000 | 0000 |
| 13/16" | 3/16" | 0.04" | 800 | 5/16"-24 | 15/32" | 3/16" | Hex | Brass | Steel | 00000000 | 0000 |
| 13/16" | 1/4" | 0.05" | 2,000 | 3/8"-16 | 23/32" | 3/16" | Hex | Brass | Steel | 00000000 | 0000 |
| 1" | 3/8" | 0.1" | 4,000 | 1/2"-13 | 29/32" | 5/16" | Hex | Brass | Steel | 00000000 | 00000 |
| 1 3/16" | 1/2" | 0.1" | 6,000 | 5/8"-11 | 1 1/8" | 3/8" | Hex | Brass | Steel | 00000000 | 00000 |
Head | Thread | Drive | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Max. Movement | Max. Clamping Force, lbs. | Size | Lg. | Size | Style | Head Material | Screw Material | Pkg. Qty. | Pkg. | |
| 5/16" | 7/64" | 0.03" | 200 | 8-32 | 11/32" | 5/64" | Hex | Brass | Steel | 10 | 00000000 | 000000 |
| 1/2" | 5/32" | 0.04" | 350 | 10-32 | 11/32" | 3/32" | Hex | Brass | Steel | 10 | 00000000 | 00000 |
| 5/8" | 3/16" | 0.04" | 800 | 1/4"-20 | 15/32" | 1/8" | Hex | Brass | Steel | 10 | 00000000 | 00000 |
| 13/16" | 3/16" | 0.04" | 800 | 5/16"-18 | 15/32" | 3/16" | Hex | Brass | Steel | 12 | 00000000 | 00000 |
| 13/16" | 3/16" | 0.04" | 800 | 5/16"-24 | 15/32" | 3/16" | Hex | Brass | Steel | 12 | 00000000 | 00000 |
| 13/16" | 1/4" | 0.05" | 2,000 | 3/8"-16 | 23/32" | 3/16" | Hex | Brass | Steel | 10 | 00000000 | 00000 |
| 1" | 3/8" | 0.1" | 4,000 | 1/2"-13 | 29/32" | 5/16" | Hex | Brass | Steel | 8 | 00000000 | 00000 |
| 1 3/16" | 1/2" | 0.1" | 6,000 | 5/8"-11 | 1 1/8" | 3/8" | Hex | Brass | Steel | 4 | 00000000 | 00000 |
Head | Thread | Drive | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd., mm | Ht., mm | Max. Movement, mm | Max. Clamping Force, lbs. | Size | Pitch, mm | Lg., mm | Size | Style | Head Material | Screw Material | Each | |
| 7.93 | 2.8 | 0.76 | 200 | M4 | 0.7 | 9.6 | 3 mm | Hex | Brass | Steel | 00000000 | 00000 |
| 15.86 | 4.75 | 1.01 | 750 | M6 | 1 | 11.2 | 4 mm | Hex | Brass | Steel | 00000000 | 0000 |
| 20.61 | 4.55 | 1.01 | 750 | M8 | 1.25 | 15 | 5 mm | Hex | Brass | Steel | 00000000 | 0000 |
| 20.61 | 6.35 | 1.27 | 1,950 | M10 | 1.5 | 19 | 7 mm | Hex | Brass | Steel | 00000000 | 0000 |
| 25.38 | 9.52 | 2.03 | 3,950 | M12 | 1.75 | 22.8 | 8 mm | Hex | Brass | Steel | 00000000 | 00000 |
| 30.13 | 12.7 | 2.54 | 5,950 | M16 | 2 | 28.5 | 12 mm | Hex | Brass | Steel | 00000000 | 00000 |
Head | Thread | Drive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd., mm | Ht., mm | Max. Movement, mm | Max. Clamping Force, lbs. | Size | Pitch, mm | Lg., mm | Size | Style | Head Material | Screw Material | Pkg. Qty. | Pkg. | |
| 7.93 | 2.8 | 0.76 | 200 | M4 | 0.7 | 9.6 | 3 mm | Hex | Brass | Steel | 10 | 00000000 | 000000 |
| 15.86 | 4.75 | 1.01 | 750 | M6 | 1 | 11.2 | 4 mm | Hex | Brass | Steel | 10 | 00000000 | 00000 |
| 20.61 | 4.55 | 1.01 | 750 | M8 | 1.25 | 15 | 5 mm | Hex | Brass | Steel | 12 | 00000000 | 00000 |
| 20.61 | 6.35 | 1.27 | 1,950 | M10 | 1.5 | 19 | 7 mm | Hex | Brass | Steel | 10 | 00000000 | 00000 |
| 25.38 | 9.52 | 2.03 | 3,950 | M12 | 1.75 | 22.8 | 8 mm | Hex | Brass | Steel | 8 | 00000000 | 00000 |
| 30.13 | 12.7 | 2.54 | 5,950 | M16 | 2 | 28.5 | 12 mm | Hex | Brass | Steel | 4 | 00000000 | 00000 |
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.
Thread | Drive | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For ID Range, mm | Max. Clamp Expansion, mm | Ht., mm | Flange OD, mm | Max. Clamping Force, lbs. | Size | Pitch, mm | Lg., mm | Size | Style | Mounting Fasteners Included | Material | Screw Material | Each | |
Top Actuated | ||||||||||||||
| 4.1-7.4 | 0.13 | 10.7 | 20 | 250 | M2 | 0.4 | 12 | 1.5 mm | Hex | Yes | Steel | Steel | 00000000 | 000000 |
| 7.1-12.4 | 0.25 | 21.8 | 29.72 | 950 | M4 | 0.7 | 25 | 3 mm | Hex | Yes | Steel | Steel | 00000000 | 00000 |
| 12.2-14.2 | 0.33 | 24.9 | 31.5 | 1,900 | M6 | 1 | 30 | 5 mm | Hex | Yes | Steel | Steel | 00000000 | 00000 |
| 13.5-20 | 0.38 | 24.9 | 37.5 | 2,500 | M8 | 1.25 | 30 | 6 mm | Hex | Yes | Steel | Steel | 00000000 | 00000 |
| 18-27 | 0.38 | 28.6 | 50 | 4,500 | M10 | 1.5 | 35 | 8 mm | Hex | Yes | Steel | Steel | 00000000 | 00000 |
| 23-35.3 | 0.38 | 31.8 | 56 | 5,900 | M12 | 1.75 | 40 | 10 mm | Hex | Yes | Steel | Steel | 00000000 | 00000 |
| 29.3-42 | 0.38 | 39.6 | 69.5 | 10,000 | M16 | 2 | 45 | 14 mm | Hex | Yes | Steel | Steel | 00000000 | 00000 |
| 29.3-51.5 | 0.38 | 39.6 | 75.5 | 10,000 | M16 | 2 | 45 | 14 mm | Hex | Yes | Steel | Steel | 00000000 | 000000 |
| 29.3-77.7 | 0.38 | 45.5 | 107.5 | 10,000 | M16 | 2 | 50 | 14 mm | Hex | Yes | Steel | Steel | 00000000 | 000000 |